NADIA Tebbal

BOUDRAA Fatima Zohra

Valorisation combiné des fibres polyéthylène et des déchets de marbre dans la confection d’un mortier auto- plaçant à base de ciment blanc

Barka Nor El Houda , Abdelmoula Iman

Etude de l’effet du milieu de conservation sur le comportement des mortiers formulés à base des granulats légers

Louglaithi soulef , Tail imane

Étude du comportement mécaniques des mortiers légers renforcés par des fibres métalliques

OUCIF Anfel , CHAIB RABI Fatima el Zohra

Etute de l'effet de l'entraineur d'air et des dechets d'allumium sur le comportement des mortiers légers

CHABIRA Mouhamed , HEMZA Ilyes

L'effet combine des fibres et les déchets de ceramique sur le comportement des mortiers legers

OMRI Imen Yamina

Valorisation des residus mineraux dans la formulation des matériaux cimentaires

BENZIYA AHMED , BOUZIDI YOUCEF

Effet combinée des fibres polythélene et de la poudre de marbre sur les caractéristiques rhéologiques et mécaniques du mortier équivalent

yasmina Megdoud

L'effet combinée du caolin et dechet de céramique dans la formulation des mortiers

مسميس عبد القادر

تأثير خطر نشاطات المنطقة الصناعية على التجمعات السكانية و آليـــات الوقــاية دراسة حالة: منطقة النشاطات - مدينة راس الوادي -

مسميس عبد القادر

تأثير خطر نشاطات المنطقة الصناعية على التجمعات السكانية و آليـــات الوقــاية دراسة حالة: منطقة النشاطات - مدينة راس الوادي -

لعموري فاتحة , العيشاوي عبد المومن

تأثير خطر شبكة الكهرباء عالية التوتر على األحياء السكنية لمدينة برج بوعريريج حالة حي بئر الصنب و واد المالح

ساسي عبد الكريم

الاخطار الناجمة عن انبعاثاتالغاز لمصنع المسيلة للاسمنتعل اتجمعات السكانية دراسة حالة ولاية المسيلة

بخي السعيد

اعادة تهيئة الفاضاءات الخارجية للارتقاء بالمجال الحضري دراسة حالةPOS9 المدينة الجديدة بوسعادة

بوقجار العلمي , عريبي عادل

الاخطار الصناعية واليات الوقايةمنها في المدن - التلوث الاخطار -دراسة حالة برج بوعريريج

بتقة الحاج , بايزيد عبد الرازق

السياحة في بوسعادة بين المؤهلات و الواقع

Habeta Fouzia , Kaddour Imene

L’utilisation de la brique recyclée et de la céramique dans la formulation des mortiers

Terki Tahar , Laichi Amar

Contribution à l'étude rhéologique d'un béton à hautes performances (BHP) local

Benhamida Rafiq , Hamrit Abdennour

Effet de l’incorporation de l’entraineur d’air sur les caractéristiques du mortier à base de déchets d’aluminium

Enhancing the thermal efficiency of construction materials has become a key objective in sustainable building design, particularly in efforts to reduce energy demand and environmental impact. This review investigates the use of ash obtained from the thermal treatment of wastewater sludge as an alternative component in mortar formulations, with specific attention to its influence on thermal performance. The reuse of this residue supports circular economy strategies by converting a treatment by-product into a value-added construction material. The review synthesizes recent research on the physical and mineralogical characteristics of wastewater-derived ash and their effects on the thermal behavior of mortar. Several studies report that the inclusion of this material modifies pore structure and bulk density, leading to lower thermal conductivity when optimal replacement levels are applied. These changes are primarily attributed to increased internal porosity and refined particle packing, which reduce heat transfer through the mortar matrix. Environmental advantages, such as reduced reliance on clinker and natural resources, are also discussed. However, challenges related to material heterogeneity, long-term thermal stability, and the need for standardized processing methods remain significant. Overall, the findings highlight the potential of wastewater-derived ash to contribute to thermally efficient and sustainable eco-building mortar systems.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2026-01-19), Eco-Building Mortars Containing Wastewater-Derived Ash for Enhanced Thermal Performance: A Review,4th International Conference on Pioneer and Innovative Studies ICPIS 2026,Konya, Turkey.

The valorization of shell waste in mortar and geopolymer is a promising avenue of research, exploiting its richness in alumino-silicates and carbon to create ecological building materials, partially replacing conventional cement and improving the physical properties (strength, porosity) of geopolymer mortars, via chemically activated geopolymerization processes, with thermal pretreatments. In this work, we will discuss some of the literature in this field and the latest findings in building materials.

Citation

Nadia TEBBAL , ,(2025-12-13), STUDY THE EFFECT OF SHELL POWDER ON MORTARS AND GEOPOLYMER,4. INTERNATIONAL PARIS SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS” 13-14 December 2025, FRANCE,France

Cement plant emissions significantly impact the environment by releasing enormous quantities of carbon dioxide (approximately 8% globally), particulate matter, and dust, causing air pollution and climate change, and harming public health and ecosystems. To address this, emissions and waste are being utilized in new building materials through technologies such as carbon capture for use in other products, the development of low-carbon building materials, and the recycling of production waste as additives, thus reducing the environmental footprint and turning the challenge into an opportunity. To reduce these gas emissions and to study alternatives for them, we will address in this work an actual experience of the cement factory located in the state of M'Sila, Algeria, and present the proposed solutions for that.

Citation

Nadia TEBBAL , ,(2025-12-13), THE GREEN CEMENT İNDUSTRY AND İTS ROLE İN REDUCİNG THE İNDUSTRİAL CARBON FOOTPRİNT: CASE STUDY OF THE CEMENT PLANT İN M'SİLA,The valorization of shell waste in mortar and geopolymer is a promising avenue of research, exploiting its richness in alumino-silicates and carbon to create ecological building materials, partially replacing conventional cement and improving the physical,france

The manufacture of cement requires the use of raw materials and fuel, and generates significant carbon dioxide emissions, prompting the exploration of cement alternatives with less environmental impact. In this context, alkali-activated cements have attracted the attention and interest of researchers as an alternative to reduce negative effects. Research and work indicate that alkali-activated materials have the potential to become an alternative binder to portland cement. The result is high compressive strength, fire resistance and acid resistance. Many studies examine the effect of portland cement combined with geopolymer pastes produced from low-calcium fly ash from the power station, on the developement of mechanical strength under curing conditions, they concluded that the combined materials obtained better resistance results, several researchers in their study of the alkaline activation of blast furnace slag, concluded that thermal hardening had a benific effect on strength, and that the limiting hardening temperature at which strength reached its best result was 80°C. The intermediate calcium content system is due to the combination of low and high calcium precursors, in which N-A-S-H and C-A-S-H gels coexist, so the choice of activator depends on the nature of the material composition. The aim of this article is to present a literature review on: alkaline activation of binders and thier environmental impact.En conclusion, le FTP-dust peut être efficacement valorisée dans les matériaux cimentaires et géopolymères, ouvrant la voie à des solutions de construction écologiques et durables.

Citation

Hanane ZADRI , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , ,(2025-12-09), Alkali-Activated Binders and Their Environmental Benefits: A Literature Review,1er Séminaire National de Génie Civil (SNGC’25),université de boumerdés

The manufacture of cement requires the use of raw materials and fuel, and generates significant carbon dioxide emissions, prompting the exploration of cement alternatives with less environmental impact. In this context, alkali-activated cements have attracted the attention and interest of researchers as an alternative to reduce negative effects. Research and work indicate that alkali-activated materials have the potential to become an alternative binder to portland cement. The result is high compressive strength, fire resistance and acid resistance. Many studies examine the effect of portland cement combined with geopolymer pastes produced from low-calcium fly ash from the power station, on the developement of mechanical strength under curing conditions, they concluded that the combined materials obtained better resistance results, several researchers in their study of the alkaline activation of blast furnace slag, concluded that thermal hardening had a benific effect on strength, and that the limiting hardening temperature at which strength reached its best result was 80°C. The intermediate calcium content system is due to the combination of low and high calcium precursors, in which N-A-S-H and C-A-S-H gels coexist, so the choice of activator depends on the nature of the material composition. The aim of this article is to present a literature review on: alkaline activation of binders and thier environmental impact.En conclusion, le FTP-dust peut être efficacement valorisée dans les matériaux cimentaires et géopolymères, ouvrant la voie à des solutions de construction écologiques et durables.

Citation

Nadia TEBBAL , ,(2025-12-08), Alkali-Activated Binders and Their Environmental Benefits: A Literature Review,1er Séminaire National de Génie Civil (SNGC’25) 08 & 09 Décembre 2025 (Boumerdès, Algérie),Boumerdès, Algérie

The use of plastic waste in concrete consists of incorporating it as recycled aggregates, partially replacing traditional aggregates, or as a raw material for composite products. This practice offers environmental advantages (waste recovery) and technical advantages (improvement of certain properties such as insulation, lightness, and sometimes strength), while also opening up avenues for the manufacture of new construction materials. Faced with these challenges, concrete recycling is emerging as an ecological solution. This work focuses on the valorization of a waste product that is harmful to the environment due to its bulky and unsightly nature: plastic waste.

Citation

Nadia TEBBAL , ,(2025-12-06), RECOVERY AND RECYCLING OF PLASTIC WASTE IN CEMENTATIONS’ MATERIALS,3. INTERNATIONAL MTSKHETA SCIENTIFIC RESEARCH AND INNOVATION CONGRESS - GEORGIA,GEORGIA

The Portland cement manufacturing industry generates harmful substances such as carbon dioxide, nitrogen oxides and sulphur dioxide, which have a negative impact on the environment. We therefore need an alternative material, namely geopolymer. These have similar or superior properties to Portland cement. Geopolymers are obtained by alkaline activation of aluminosilicate materials. However, one of the disadvantages of geopolymers is that they require more expensive alkaline activators, such as NaOH and Na2Si3, than traditional binders, to activate the precursor, and they present risks of corrosion. This review offers a perspective on the role of geopolymers and the development of innovative solutions to overcome their disadvantages and in advancing a sustainable future, notably by reducing their impact such as replacing the activator solution with water to reduce the use of alkaline activators. Use of magnesium hydroxide in the manufacture of geopolymers. Or they offer a gentler, more environmentally-friendly approach to activating aluminosilicate materials.

Citation

Nadia TEBBAL , ,(2025-12-06), EFFECT OF ACTIVATOR CHEMISTRY ON THE STRENGTH DEVELOPMENT OF GEOPOLYMER SYSTEMS: REVIEW,1st National Seminar on Process Engineering: Environmental Challenges and Industrial Development,Buira , Algeria

The increasing production of Portland cement (PC), over 4 billion tons annually, poses environmental challenges due to high energy demands, fossil fuel use, and CO₂ emissions. Alkali-activated materials (AAMs), or geopolymers, offer a promising alternative thanks to their low carbon footprint, ambient curing, and good mechanical performance. Blast furnace slag (BFS), widely available and cost-effective, is a commonly used precursor. Many studies have investigated its use alone or with materials like metakaolin, fly ash, or recycled glass. However, the results vary due to differences in activator types, concentrations, and curing conditions. This review examines how activator types affect the mechanical performance of slag-based binders, aiming to identify optimal, sustainable formulations.

Citation

Nadia TEBBAL , ,(2025-11-26), Effect of Activator Chemistry on the Strength Development of Blast Furnace Slag Geopolymer Systems : review,Materials Sciences And Engineering, (MSE’25).,bejai

The increasing production of Portland cement (PC), over 4 billion tons annually, poses environmental challenges due to high energy demands, fossil fuel use, and CO₂ emissions. Alkali-activated materials (AAMs), or geopolymers, offer a promising alternative thanks to their low carbon footprint, ambient curing, and good mechanical performance. Blast furnace slag (BFS), widely available and cost-effective, is a commonly used precursor. Many studies have investigated its use alone or with materials like metakaolin, fly ash, or recycled glass. However, the results vary due to differences in activator types, concentrations, and curing conditions. This review examines how activator types affect the mechanical performance of slag-based binders, aiming to identify optimal, sustainable formulations.

Citation

Hanane ZADRI , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , ,(2025-11-26), EFFECT OF ACTIVATOR CHEMISTRY ON THE STRENGTH DEVELOPMENT OF BLAST FURNANCE SLAG GEOPOLYMER SYSTEMS: REVIEW,International Day of Thermal Spray (Algeria 26 November 2025),université de bejaia, algeria

The valorization of glass waste in concrete is achieved by using glass in the form of fine or coarse aggregate, or as a partial substitute for powdered cement. Crushed glass can be used as a sand replacement aggregate or as pozzolanic filler, with potential advantages such as improving certain concrete properties (rheology, deformability) and reducing CO2 emissions. However, excessive use can negatively affect mechanical strength. In this study, we will conduct a literature review on various completed works that discuss this topic from the perspective of the environment and mechanical properties.

Citation

Nadia TEBBAL , ,(2025-11-22), VALORİZATİON OF GLASS WASTE İN THE FORMULATİON OF CEMENTİTİOUS MATERİALS,3. INTERNATIONAL ŞİRVANŞAHLAR SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS,Azerbaijan

alkali activated binder commonly named as gepolymeric binder is considered like a new eco friendly material construction and may remplace the ciment which production is one of the most important source of CO2, the second most important greenhouse gas, after water vapour, whose concentration has increased by 47% since the 18th century. According to the Global Cement and Concrete Association, cement manufacturing generates 7% of the world's CO2,In recent years, the environment has become one of the major concerns of our society. In particular the greenhouse gases are at the origin of climate . Today, finding a good alternative becomes crucial.

Citation

Nadia TEBBAL , ,(2025-11-18), THE INFLUENCE OF CURING TEMPERATURE ON THE ALKALIACTIVATED MATERIAL ( LITTERATURE REVIEW) N.,1st National Seminar On Innovative Materials, Construction and Environment, NSIMCE-2025,,skikda, algeria

Alkali activated binder commanly named as gepolymeric binder is considered like a new eco friendly material construction and may remplace the ciment which production is one of the most important source of CO2, the second most important greenhouse gas, after water vapour, whose concentration has increased by 47% since the 18th century. According to the Global Cement and Concrete Association, cement manufacturing generates 7% of the world's CO2, In recent years, the environment has become one of the major concerns of our society. In particular the greenhouse gases are at the origin of climate . Today, finding a good alternative becomes crucial. Geopolymers can be obtained by a chemical reaction under highly alkaline conditions between an activating solution of sodium hydroxide and sodium silicate and an aluminosilicate (material with a high SiO2 and Al2O3 content) such as fly ash, blast-furnace slag, metakaolin or other natural minerals Some parameters can influence the geopolymerisation process either the preparation of raw materials or the curing treatment of blends, like the temperature, which affects the reaction rate and also the mechanical properties and the microstructure of the geopolymers, In the literature some studies have been carried out on several types of geopolymer mortar to determine the effect of the cured temperature on the formation of geopolymers..

Citation

Nour Elhouda BENGHALEM , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , Hanane ZADRI , ,(2025-11-06), The influence of curing parameters on the alkali activated mortar,In the 1st National Seminar on Process Engineering and Industrial Development (NSPEID’25),boumerdes. Algerie

Alkali activated binder commanly named as gepolymeric binder is considered like a new eco friendly material construction and may remplace the ciment which production is one of the most important source of CO2, the second most important greenhouse gas, after water vapour, whose concentration has increased by 47% since the 18th century. According to the Global Cement and Concrete Association, cement manufacturing generates 7% of the world's CO2, In recent years, the environment has become one of the major concerns of our society. In particular the greenhouse gases are at the origin of climate . Today, finding a good alternative becomes crucial. Geopolymers can be obtained by a chemical reaction under highly alkaline conditions between an activating solution of sodium hydroxide and sodium silicate and an aluminosilicate (material with a high SiO2 and Al2O3 content) such as fly ash, blast-furnace slag, metakaolin or other natural minerals Some parameters can influence the geopolymerisation process either the preparation of raw materials or the curing treatment of blends, like the temperature, which affects the reaction rate and also the mechanical properties and the microstructure of the geopolymers, In the literature some studies have been carried out on several types of geopolymer mortar to determine the effect of the cured temperature on the formation of geopolymers.. Key words: : geopolymer; Aluminosilicate; alkali-activation; microsturcture ; temperature.

Citation

Nadia TEBBAL , ,(2025-11-05), THE INFLUENCE OF CURING PARAMETERS ON THE ALKALI ACTIVATED MORTAR ( LITTERATURE REVIEW),1st National Seminar on Process Engineering and Industrial Development (NSPEID’25),buira

Alkali activated binder commanly named as gepolymeric binder is considered like a new eco friendly material construction and may remplace the ciment which production is one of the most important source of CO2, the second most important greenhouse gas, after water vapour, whose concentration has increased by 47% since the 18th century. According to the Global Cement and Concrete Association, cement manufacturing generates 7% of the world's CO2, In recent years, the environment has become one of the major concerns of our society. In particular the greenhouse gases are at the origin of climate . Today, finding a good alternative becomes crucial. Geopolymers can be obtained by a chemical reaction under highly alkaline conditions between an activating solution of sodium hydroxide and sodium silicate and an aluminosilicate (material with a high SiO2 and Al2O3 content) such as fly ash, blast-furnace slag, metakaolin or other natural minerals Some parameters can influence the geopolymerisation process either the preparation of raw materials or the curing treatment of blends, like the temperature, which affects the reaction rate and also the mechanical properties and the microstructure of the geopolymers, In the literature some studies have been carried out on several types of geopolymer mortar to determine the effect of the cured temperature on the formation of geopolymers

Citation

Nadia TEBBAL , ,(2025-11-05), THE INFLUENCE OF CURING PARAMETERS ON THE ALKALI ACTIVATED MORTAR,1st National Seminar on Process Engineering and Industrial Development (NSPEID’25),Boumerdès, Algérie

Recycling construction waste in Algeria is a fundamental step toward sustainable development, as it reduces waste accumulation, contributes to the conservation of natural resources, and creates job opportunities. This requires developing the infrastructure to collect, sort, and process this waste, while encouraging investment in modern technologies and adopting integrated national waste management strategies. To demonstrate the importance of the topic, we will address in this work the benefits of recycling for sustainable development with global models.

Citation

Nadia TEBBAL , ,(2025-10-18), RECYCLİNG CONSTRUCTİON WASTE İN ALGERİA TO SERVE SUSTAİNABLE DEVELOPMENT,3. INTERNATIONAL SARAJEVO SCIENTIFIC RESEARCHES ANDINNOVATION CONGRESS” 18-19 October, BOSNIA-HERZEGOVINA,BOSNIA-HERZEGOVINA

How to give concrete a second life? Discover the benefits of concrete recycling and the different methods for sustainable and environmentally friendly construction. Concrete is one of the most widely used building materials in the world. However, its production and disposal have harmful consequences for the environment. Faced with these challenges, concrete recycling is emerging as an ecological solution. Focus on recycling techniques, the transformation of concrete waste, and the associated regulations. In this context, we try to pose the following question and answer it through previous references:

Citation

Nadia TEBBAL , ,(2025-10-11), CONCRETE RECYCLİNG: STANDARDS AND SOLUTİONS FOR QUARRİES,2. INTERNATIONAL PRIZREN SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS ”,KOSOVA

Waste management first appears to be a question of organization and optimization of already known techniques, whose environmental effects are apparently under control. It thus presents itself less as a major environmental issue than as an economic and management issue. The importance of renewable energy, more specifically through the energy recovery of incineration, clearly appears as an interesting alternative. In this study, we focus on incineration, considered efficient. This incineration not only stabilizes waste while reducing its pollutant load, but also produces thermal and electrical energy; renewable energy that can be used in various domestic applications. The objective of this paper is to present a study on the phenomenon of incineration taken from a bibliographic collection.

Citation

Nadia TEBBAL , ,(2025-10-11), Waste recovery by incineration in Algeria,2. INTERNATIONAL PRIZREN SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS,KOSOVA

Activation of cementitious materials refers to the use of physical (heat treatment), chemical (additives, alkaline activators) or combinations of both, to improve the reactivity and performance of materials, including cements and reactive precursors such as slag or fly ash. This activation can occur spontaneously or be induced to increase mechanical strength, workability or to optimize the contribution of mineral additives in the cement. In this study, we will conduct a literature review on various completed works that discuss this topic from the perspective of the environment and mechanical properties.

Citation

Nadia TEBBAL , ,(2025-08-30), ACTİVATİON OF İNDUSTRİAL WASTE AND MİNİNG WASTE USED İN CEMENTİTİOUS MATERİALS,3. INTERNATIONAL TRANSYLVANIA SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS,ROMANIA

Industrial waste materials represent a significant environmental and economic challenge worldwide. However, recycling and valorization of these wastes offer promising solutions to mitigate their adverse impacts while contributing to sustainable development. In this context, extensive scientific research has focused on evaluating the feasibility of incorporating waste materials as partial substitutes in construction composites such as mortar. This study investigates the potential use of granular metallic industrial waste as a partial replacement for natural sand in ordinary mortar mixtures. Specifically, we replaced sand with 5%, 10%, and 15% proportions of granular metallic waste and analyzed the consequent effects on the fresh and hardened properties of the mortar. The findings demonstrate the viability of waste valorization in mortar production, offering an innovative pathway to reduce environmental footprint while maintaining structural performance. Keywords: Mortar, metallic waste, sand, Hardened Properties

Citation

Nadia TEBBAL , ,(2025-08-28), Innovative Use Of Industrial Waste İn Mortar: Enhancing Material Performance Through Sand Replacemen,7st INTERNATIONALTRAKYA SCIENTIFICRESEARCH CONGRESS,EDİRNE, TÜRKİY

The use of fibers in geopolymers aims to improve their mechanical properties, including tensile strength and flexibility. These fibers can be natural or synthetic, and their choice depends on the specific requirements of the appli Geopolymers are inorganic polymers based on aluminosilicates. They are the amorphous equivalents of zeolites, aluminosilicates with a porous crystal lattice.cation. In this study, we will conduct a literature review on various completed works that discuss this topic from the perspective of the environment and mechanical properties. Keyswords : Mining waste, Fibers , geolymeres, literary study, experimental research .

Citation

Nadia TEBBAL , ,(2025-08-16), Role of different types of fibers in gepolymers formulated with mining or industrial waste: Between literary study and experimental research,Role of different types of fibers in gepolymers formulated with mining or industrial waste: Between literary study and experimental research,İSTANBUL/TÜRKİYE

The use of mining waste in mortars is a promising practice for improving the performance and durability of construction materials, while reducing the environmental impact of the construction industry. However, accurate characterization of the waste and a thorough study of its effects on mortar properties are required to ensure optimal results. Fibers in concrete and mortar play a crucial role in improving their performance, including controlling cracking, increasing strength, and reducing permeability. They act as internal reinforcement, compensating for potential weaknesses in the material. In this study, we will conduct a literature review on various completed works that discuss this topic from the perspective of the environment and mechanical properties. Keyswords : Mortar , mining waste, literary study, experimental research .

Citation

Nadia TEBBAL , ,(2025-08-02), Effect of fiber on the properties of mortars formulated with mining waste: Between literary study and experimental research,2. INTERNATIONAL OHRID SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS”,NORTH MACEDONIA

The Portland cement manufacturing industry generates harmful substances such as carbon dioxide, nitrogen oxides and sulphur dioxide, which have a negative impact on the environment. We therefore need an alternative material, namely geopolymer. These have similar or superior properties to Portland cement. Geopolymers are obtained by alkaline activation of aluminosilicate materials. However, one of the disadvantages of geopolymers is that they require more expensive alkaline activators, such as NaOH and Na2Si3, than traditional binders, to activate the precursor, and they present risks of corrosion. This review offers a perspective on the role of geopolymers and the development of innovative solutions to overcome their disadvantages and in advancing a sustainable future, notably by reducing their impact such as replacing the activator solution with water to reduce the use of alkaline activators. Use of magnesium hydroxide in the manufacture of geopolymers. Or they offer a gentler, more environmentally-friendly approach to activating aluminosilicate materials.

Citation

Hanane ZADRI , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , Nour Elhouda BENGHALEM , ,(2025-07-06), EFFECT OF ACTIVATOR CHEMISTRY ON THE STRENGTH DEVELOPMENT OF GEOPOLYMER SYSTEMS: REVIEW,1st National Seminar on Process Engineering: Environmental Challenges and Industrial Development,université de Bouira, Algerie

This research includes an experimental study to study the effect of high temperatures on the mechanical and physical properties of concretes formulated with adjuvants. The concrete was exposed to three high temperature levels (200, 400 and 600) ° C with a temperature rise of 10 °C /min, without any load imposed during heating. One type of adjuvant was used. The mechanical properties of the concrete have been studied at different high temperatures, including: compressive strength, flexural tensile strength and mass loss. The results showed a reduction in the properties studied by different rates for adjuvant and for each temperature; the decrease was very limited at a temperature up to (200°C) but was clear between (400-600°C).

Citation

Nadia TEBBAL , ,(2025-06-28), EFFECT OF HIGH TEMPERATURE ON CONCRETE MIXED WITH PLASTICIZERS: LITERATURE,3. INTERNATIONAL PARIS SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS” 28-29 June 2025, FRANCE,France

The disposal of sewage sludge from wastewater treatment plants presents significant environmental and economic challenges. Thermal treatment of sewage sludge results in sewage sludge ash (SSA), a by-product with pozzolanic and cementitious properties, offering a potential solution for sustainable construction materials. This review explores the valorization of SSA as a partial replacement for cement and aggregates in concrete and mortar production, aiming to enhance sustainability while reducing the environmental footprint of the construction industry. A critical analysis of SSA’s chemical composition, mineralogical phases, and physical characteristics highlights its compatibility with cementitious materials. Studies indicate that incorporating SSA can improve specific mechanical and durability properties, such as sulfate resistance, water absorption, and long-term strength. However, challenges related to SSA variability, heavy metal content, and its impact on fresh and hardened properties require further investigation. This review discusses existing research on SSA’s integration into concrete and mortar, outlines the limitations of current applications, and identifies future research needs. The findings support SSA as a viable alternative material in construction, promoting circular economy principles and sustainable waste management.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2025-06-20), Valorization of Sewage Sludge Ash from Wastewater Treatment in Sustainable Concrete and Mortar: A Review,2nd International Conference on Engineering, Natural Sciences, and Technological Developments (ICENSTED 2025),Bayburt, Türkİye

Carbon dioxide (CO₂) is one of the main contributors to climate change, largely emitted by the construction materials industry, particularly through cement production. To reduce this carbon footprint, geopolymers have emerged as a sustainable alternative to Portland cement (OPC). Derived from the valorization of aluminosilicate-rich materials (such as fly ash and blast furnace slag) and activated by alkaline solutions, they require less energy and produce lower CO₂ emissions. However, when exposed to CO₂, geopolymers undergo carbonation, a process that can either enhance their density and strength or weaken their structure by altering porosity and the gel phase. This review examines their behavior in CO₂-rich environments, analyzing their carbonation resistance, CO₂ capture and storage capacity, and their potential for more sustainable and ecofriendly construction.

Citation

Hanane ZADRI , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , ,(2025-05-13), The resistance of geopolymers to carbon dioxide and thier valorisation into a sustainable resource,The first international conference on green engineering ICGE,Université Mohamed El Bachir El Ibrahimi Bourdj bou Arririj

Carbon dioxide (CO₂) is one of the main contributors to climate change, largely emitted by the construction materials industry, particularly through cement production. To reduce this carbon footprint, geopolymers have emerged as a sustainable alternative to Portland cement (OPC). Derived from the valorization of aluminosilicate-rich materials (such as fly ash and blast furnace slag) and activated by alkaline solutions, they require less energy and produce lower CO₂ emissions. However, when exposed to CO₂, geopolymers undergo carbonation, a process that can either enhance their density and strength or weaken their structure by altering porosity and the gel phase. This review examines their behavior in CO₂-rich environments, analyzing their carbonation resistance, CO₂ capture and storage capacity, and their potential for more sustainable and eco-friendly construction.

Citation

Nadia TEBBAL , ,(2025-05-12), The resistance of geopolymers to carbon dioxide and thier valorisation into a sustainable resource,ICGE 25,BBA , Algeria

In recent years, the environment has become one of the major concerns of our society. In particular CO2, the greenhouse gases are at the origin of climate. The second most important greenhouse gas, after water vapour, whose concentration has increased by 47% since the 18th century. According to the Global Cement and Concrete Association, cement manufacturing generates 7% of the world's CO2. Today, a good alternative is geopolymer concrete which is a cement-free concrete. Geopolymerization is the chemical process that brings together all the reactions transforming solid rich in silica (Si) and alumina (Al), such as fly ash, blast furnace slag or clay, an alkaline activator, such as sodium hydroxide (NaOh), to form an alkaline solution, under different experimental conditions, into aluminosilicate gel. This reaction comprises three stages: a dissolution/hydrolysis stage, a restructuring stage and a polycondensation stage. Several parameters can influence the process, such as temperature which has an effect on the reaction rate, the microstructure and mechanical properties of the geopolymers, like the texture of the final material, mechanical strength, porosity or thermal stability. Experimental studies are often carried out to determine the appropriate temperature parameters for obtaining the desired properties of the geopolymer material

Citation

Nadia TEBBAL , ,(2025-05-12), Geoplymerisation Mechanism And The Influence Of Temperature “Literature review”,ICGE 25,BBA , Algeria

In the pursuit of sustainable development and addressing the growing issue of inert waste, this work explores the potential of using recycled sanitary ceramic as a partial replacement for natural sand in the production of ordinary concrete. The study aims to evaluate the impact of exposure to acidic environments, represented by sulfuric acid (H₂SO₄) and hydrochloric acid (HCl) solutions, on the performance of this modified concrete. The results show that the chemical reaction between the acids and the calcium compounds present in the concrete leads to a significant decrease in its fundamental properties, such as mass, volume, and compressive strength. This continuous degradation, in the presence of acids, indicates potential challenges when using this type of concrete in environments with an acidic nature.

Citation

Nadia TEBBAL , ,(2025-05-12), Acomparative analysis of descriptive and non descriptive testing for miniral admixted concretes proprties,ICGE 25,BBA , Algeria

In recent years, the environment has become one of the major concerns of our society. In particular CO2, the greenhouse gases are at the origin of climate. The second most important greenhouse gas, after water vapour, whose concentration has increased by 47% since the 18th century. According to the Global Cement and Concrete Association, cement manufacturing generates 7% of the world's CO2. Today, a good alternative is geopolymer concrete which is a cement-free concrete. Geopolymerization is the chemical process that brings together all the reactions transforming solid rich in silica (Si) and alumina (Al), such as fly ash, blast furnace slag or clay, an alkaline activator, such as sodium hydroxide (NaOh), to form an alkaline solution, under different experimental conditions, into aluminosilicate gel. This reaction comprises three stages: a dissolution/hydrolysis stage, a restructuring stage and a polycondensation stage. Several parameters can influence the process, such as temperature which has an effect on the reaction rate, the microstructure and mechanical properties of the geopolymers, like the texture of the final material, mechanical strength, porosity or thermal stability. Experimental studies are often carried out to determine the appropriate temperature parameters for obtaining the desired properties of the geopolymer material

Citation

Nour Elhouda BENGHALEM , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , ,(2025-05-12), geoplymerisation mecanism and the influence of temperature literatture review,the first interanational conference on green engineering (ICGE-25),borj bou arreridj algerie

Concrete is a versatile and essential building material, comprising two fundamental components: aggregate and paste. The aggregate, typically consisting of sand, gravel, or crushed stone, provides structural strength, while the paste—made from binders like Portland cement (with or without additives), water, and air-acts as a binding agent. Through the chemical reaction of hydration, this paste hardens, transforming the mixture into a robust, rock-like substance known as concrete. To enhance specific properties of fresh or hardened concrete, admixtures and additives are often utilized. In our practical application, we focus on incorporating marble powder as a distinct cement additive. This locally sourced, recycled material is not only readily available and cost-effective but also easily processed. Our goal is to unlock the potential of mineral powders, such as marble powder, by integrating them into high-quality concretes, thereby adding value to these materials. Keywords: Concrete, marble powder, mechanical strength, destructive testing, durability, non-destructive testing, super plasticize

Citation

Nadia TEBBAL , ,(2025-04-26), Recycled Marble Powder İnto Sustainable Concrete Solutions,2. INTERNATIONAL İYONYA SCIENTIFIC RESEARCH CONGRESS,İZMİR / TÜRKİYE

The portland cement manufacturing industry generates harmful substances such as carbon dioxide, nitrogen oxides and sulphur dioxide, which have a negative impact on the environment. We therefore need an alternative material, namely geopolymer. These have similar or superior properties to portland cement. Geopolymers are obtained by alkaline activation of aluminosilicate materials. However, one of the disadvantages of geopolymers is that they require more expensive alkaline activators, such as NaOH and Na2Si3, than traditional binders, to activate the precursor, and they present risks of corrosion. This review offers a perspective on the role of geopolymers and the development of innovative solutions to overcome their disadvantages and in advancing a sustainable future, notably by reducing their impact such as replacing the activator solution with water to reduce the use of alkaline activators. Use of magnesium hydroxide in the manufacture of geopolymers. Or they offer a gentler, more environmentally-friendly approach to activating aluminosilicate materials.

Citation

Nadia TEBBAL , ,(2025-04-22), The Geopolymers: Activators and the Influence of Composition Parameters,Séminaire International sur l’Energétique et les Energies Renouvelables (SIEER 2025),Batna, Algeria

Geopolymerization is the chemical process that brings together all the reactions transforming solid rich in silica (Si) and alumina (Al), such as fly ash, blast furnace slag or metakaolin, an alkaline activator, such as sodium hydroxide (NaOh) or potassium hydroxide (Koh), to form an alkaline solution, under different experimental conditions, into aluminosilicate gel. This chemical reaction, called polymerization, enables the elements present in the raw materials to bind together to form a solid three-dimensional network, similar to that of Portland cement. This reaction mechanism for geopolymer formation comprises three stages: a dissolution/hydrolysis stage, a restructuring stage and a final polycondensation stage. Several parameters can influence the geopolymerization process, such as the alumino-silicate source (precursor type), particle texture and morphology, particle size and specific surface, alkaline activator type and concentration, water content, the silica content, as well as temperature.

Citation

Nadia TEBBAL , ,(2025-04-22), Influence of activation temperature on the geopolymerization mechanism (review),SIEER 25,Batna, Algeria

Geopolymerization is the chemical process that brings together all the reactions transforming solid rich in silica (Si) and alumina (Al), such as fly ash, blast furnace slag or metakaolin, an alkaline activator, such as sodium hydroxide (NaOh) or potassium hydroxide (Koh), to form an alkaline solution, under different experimental conditions, into aluminosilicate gel. This chemical reaction, called polymerization, enables the elements present in the raw materials to bind together to form a solid three-dimensional network, similar to that of Portland cement. This reaction mechanism for geopolymer formation comprises three stages: a dissolution/hydrolysis stage, a restructuring stage and a final polycondensation stage. Several parameters can influence the geopolymerization process, such as the alumino-silicate source (precursor type), particle texture and morphology, particle size and specific surface, alkaline activator type and concentration, water content, the silica content, as well as temperature. In the literature we find two types of heat treatment, the treatment of the raw material, i.e. calcination temperature, and the curing treatment, several studies have been carried out for these two types of treatment, with regard to calcination temperature, the temperatures depend on the materials used, and has an effect on the mineralogical composition and properties, for example (Abduallah Muftah Menshaz and Megat Azmi Megat Joharifor in 2017) have studied the characterization of chemical and physical properties of metakaolin obtained via calcination of kaolin at three different temperatures (650˚C, 750˚C and 850˚C) in comparison to that of pure or noncalcined kaolin., whereas the curing temperature, which is much lower some studies have been carried out on several types of geopolymer mortar in different curing conditions for exemple (Adelino Lopes and Sérgio Lopes in 2023) evaluated the mechanical strength of several metakaolin-based geopolymer specimens subjected to different curing temperatures (10, 15, 20, 30, 40 and 50 C), The temperature has an effect not only on the reaction rate, but also on the microstructure and mechanical properties of the geopolymers, such as the texture of the final material, mechanical strength, homogeneity, porosity and thermal stability, and experimental studies and tests are often carried out to determine the appropriate temperature parameters for obtaining the desired properties of the geopolymer material.

Citation

Nour Elhouda BENGHALEM , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , ,(2025-04-22), influence of activation temperature on the geoplymerization mechanism ( review),séminaire international sur l'energitique et les energies renouvlable ( SIEER2025),batna

The portland cement manufacturing industry generates harmful substances such as carbon dioxide, nitrogen oxides and sulphur dioxide, which have a negative impact on the environment. We therefore need an alternative material, namely geopolymer. These have similar or superior properties to portland cement. Geopolymers are obtained by alkaline activation of aluminosilicate materials. However, one of the disadvantages of geopolymers is that they require more expensive alkaline activators, such as NaOH and Na2Si3, than traditional binders, to activate the precursor, and they present risks of corrosion. This review offers a perspective on the role of geopolymers and the development of innovative solutions to overcome their disadvantages and in advancing a sustainable future, notably by reducing their impact such as replacing the activator solution with water to reduce the use of alkaline activators. Use of magnesium hydroxide in the manufacture of geopolymers. Or they offer a gentler, more environmentally-friendly approach to activating aluminosilicate materials

Citation

Hanane ZADRI , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , ,(2025-04-22), The Geopolymers: Activators and the Influence of Composition Parameters.,SÉMINAIRE INTERNATIONAL SUR L’ÉNERGÉTIQUE ET LES ÉNERGIES RENOUVELABLES – BATNA AVRIL 2025,université de Batna, Algeria

Effect of thickness stretching For Buckling Analysis Of Functionally Graded Sandwich Plates

Citation

Nadia TEBBAL , ,(2025-02-17), Effect of thickness stretching For Buckling Analysis Of Functionally Graded Sandwich Plates,2nd NATIONAL SEMINAR OF PHYSICS, CHEMISTRY AND THEIR APPLICATIONS (NSPCA’25)”,BBA , Algeria

Nanomaterials are transforming the field of civil engineering by significantly enhancing the performance and durability of construction materials and infrastructure. This research explores the innovative applications of nanotechnology in civil engineering, focusing on how nanomaterials improve the properties of traditional materials like concrete, steel, and asphalt. The study examines the impact of nanoparticles, such as carbon nanotubes, nano-silica, and nano-titanium dioxide, in increasing the mechanical strength, durability, and self-healing capabilities of these materials. Moreover, the research delves into the environmental benefits of using nanomaterials, including their potential to reduce the carbon footprint of construction processes and extend the lifespan of infrastructure. The incorporation of nanomaterials also offers new functionalities, such as enhanced resistance to corrosion, improved thermal insulation, and the ability to monitor structural health in real-time through embedded sensors. While the advantages of nanomaterials in civil engineering are significant, the study also addresses the challenges, including the high cost of production, potential environmental risks, and the need for standardized testing methods. As the field continues to evolve, this research aims to provide a comprehensive overview of the current state of nanomaterials in civil engineering, highlighting their potential to revolutionize the construction industry and contribute to more sustainable and resilient infrastructure.

Citation

Nadia TEBBAL , ,(2025-01-15), Next-Generation Construction: Leveraging Nanomaterials for Enhanced Performance and Sustainability in Civil Engineering,2nd International Conference on Modern and Advanced Research ICMAR,,Konya, Turkey.

Nanomaterials are transforming the field of civil engineering by significantly enhancing the performance and durability of construction materials and infrastructure. This research explores the innovative applications of nanotechnology in civil engineering, focusing on how nanomaterials improve the properties of traditional materials like concrete, steel, and asphalt. The study examines the impact of nanoparticles, such as carbon nanotubes, nano-silica, and nano-titanium dioxide, in increasing the mechanical strength, durability, and self-healing capabilities of these materials. Moreover, the research delves into the environmental benefits of using nanomaterials, including their potential to reduce the carbon footprint of construction processes and extend the lifespan of infrastructure. The incorporation of nanomaterials also offers new functionalities, such as enhanced resistance to corrosion, improved thermal insulation, and the ability to monitor structural health in real-time through embedded sensors. While the advantages of nanomaterials in civil engineering are significant, the study also addresses the challenges, including the high cost of production, potential environmental risks, and the need for standardized testing methods. As the field continues to evolve, this research aims to provide a comprehensive overview of the current state of nanomaterials in civil engineering, highlighting their potential to revolutionize the construction industry and contribute to more sustainable and resilient infrastructure.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2025-01-15), Next-Generation Construction: Leveraging Nanomaterials for Enhanced Performance and Sustainability in Civil Engineering,2nd International Conference on Modern and Advanced Research,Konya, Turkey

Valorization of glass waste in brick manufacturing , 5th International Conference on Scientific and Academic Research on 23-24 December in 2024 at Konya/Turkey

Citation

Nadia TEBBAL , ,(2024-12-23), Valorization of glass waste in brick manufacturing,5th International Conference on Scientific and Academic Research,Konya/Turkey

In order to create a geopolymer or alkali activated material similar to cementitious materials for chemical and physical study as well as mechanical behavior, the majority of prior research on the terms alkaline and thermal activation was applied in the presence of cement as the main constituent and mixed with industrial waste such as (red brick, slag, ceramic and glass…etc). The solubility of aluminates-silicates can be facilitated by chemical solutions, such as KOH, NaOH and Na2SiO3 or Na2CO3, at varying concentrations. The effectiveness of these methods depends on the nature of the system (CaO-SiO2-Al2O3) in mineral residues. Additionally, there is the thermal method, which involves hardening the material at a temperature difference of 20°C to 80°C for a period of 24 to 48 hours. Studies and researchers have found that all these methods to protect the environment and give perfect solutions to recycler the maximum of the minerals waste for making the alternative binders.

Citation

imen yamina omri , ZINE EL ABIDINE Rahmouni , Seif Eddine KHADRAOUI , Nadia TEBBAL , ASSELI Aymen Elouanas, ,(2024-12-17), HOW TO RECYCLE INDUSTRIAL WASTE TO CREATE INNOVATIVE MATERIALS WITHOUT PORTLAND CEMENT.,The First National Congress On Civil Engineering and Housing of Constantine N2CEHC 2024,Mentouri University of Constantine

This review investigates the integration of self-healing materials and sewage sludge ash (SSA) as a pioneering strategy for sustainable and resilient construction. Self-healing materials, with their ability to autonomously repair microcracks, offer a game-changing solution to enhance the durability and lifespan of infrastructure. Simultaneously, SSA, a by-product of wastewater treatment, is presented as a sustainable alternative to traditional cement and aggregates, reducing landfill waste and mitigating the environmental impact of construction activities. The review synthesizes current advancements in combining these two technologies, focusing on their mutual benefits for mechanical properties, environmental sustainability, and structural integrity. It highlights the ability of SSA to improve the microstructural properties of concrete while preserving the functionality of self-healing agents, such as bacterial spores and polymer capsules. Furthermore, it discusses the challenges of optimizing SSA integration and ensuring compatibility with self-healing systems. By analyzing recent developments and identifying research gaps, this review underscores the transformative potential of this dual approach. It envisions a future where SSA and self-healing materials jointly contribute to the development of eco-friendly and durable infrastructure, aligning with global sustainability and circular economy goals. Keywords – Self-healing materials, sewage sludge ash, sustainable construction, eco-friendly innovations, waste valorization.

Citation

Nadia TEBBAL , ,(2024-12-13), Revolutionizing Green Construction: A Review on Self-Healing Materials and Sewage Sludge Ash Integration,4th International Conference on Frontiers in Academic Research ICFAR,Konya, Turkey.

This review delves into the intersection of self-healing materials and sewage sludge ash (SSA) as a transformative approach in sustainable construction. Self-healing materials offer the ability to autonomously repair cracks, significantly enhancing structural lifespan and reducing maintenance efforts. Meanwhile, SSA, a by-product of wastewater treatment processes, provides an eco-friendly alternative to conventional cement and fine aggregates, addressing environmental concerns by recycling waste and reducing carbon emissions. Through a comprehensive evaluation of recent research, this review explores the combined application of these innovative materials, assessing their impact on mechanical properties, durability, and environmental sustainability. Key findings highlight the potential of SSA to improve the microstructure and performance of self-healing concrete, while the integration of advanced repair mechanisms ensures prolonged functionality and resilience under environmental stressors. The review also identifies existing challenges, including the optimization of SSA processing methods and the compatibility of self-healing technologies with alternative binders. By summarizing state-of-the-art developments and proposing future research directions, this study underscores the potential of combining SSA and self-healing materials to revolutionize construction practices, promoting the development of resilient, low-carbon infrastructure.

Citation

Nadia TEBBAL , ,(2024-12-03), Advancing Sustainable Infrastructure: The Synergy of Self-Healing Materials and Sewage Sludge Ash in Construction,,3rd International Conference on Recent Academic Studies ICRAS,Konya, Turkey

This review delves into the intersection of self-healing materials and sewage sludge ash (SSA) as a transformative approach in sustainable construction. Self-healing materials offer the ability to autonomously repair cracks, significantly enhancing structural lifespan and reducing maintenance efforts. Meanwhile, SSA, a by-product of wastewater treatment processes, provides an eco-friendly alternative to conventional cement and fine aggregates, addressing environmental concerns by recycling waste and reducing carbon emissions. Through a comprehensive evaluation of recent research, this review explores the combined application of these innovative materials, assessing their impact on mechanical properties, durability, and environmental sustainability. Key findings highlight the potential of SSA to improve the microstructure and performance of self-healing concrete, while the integration of advanced repair mechanisms ensures prolonged functionality and resilience under environmental stressors. The review also identifies existing challenges, including the optimization of SSA processing methods and the compatibility of self-healing technologies with alternative binders. By summarizing state-of-the-art developments and proposing future research directions, this study underscores the potential of combining SSA and self-healing materials to revolutionize construction practices, promoting the development of resilient, low-carbon infrastructure.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2024-12-03), Advancing Sustainable Infrastructure: The Synergy of Self-Healing Materials and Sewage Sludge Ash in Construction,3rd International Conference on Recent Academic Studies ICRAS 2024,Konya, Turkey

Valorization of sewage sludge into ceramic materials, International Ceramics And Composite Materials Symposium , November 15-16,2024- ISparta, Turkiye.

Citation

Nadia TEBBAL , ,(2024-11-15), Valorization of sewage sludge into ceramic materials,International Ceramics And Composite Materials Symposium,ISparta, Turkiye

, This paper investigates the alternative use of sewage sludge ash (SSA) for the production of light weight aggregate (LWA) for sustainable construction The main objective is to investigate how SSA can be successfully reused to produce construction materials without reducing environmental contributions. The study examines the processes for converting SSA into lightweight aggregates, focusing on the technological processes and factors that make this application possible. Key benefits include significant reductions in the overall weight of concrete structures, reduced transportation and housing costs, and improved thermal insulation, which improves energy efficiency in buildings to the sky In addition, the paper discusses the environmental benefits of implementing SSA in LWA operations, such as waste disposal reduction, greenhouse gas emission reduction, natural a will be preserved and also discusses technical challenges including the need for continuous quality improvement and compliance with regulatory standards. Research emphasizes the importance of quality qualitative and strategic approaches to ensure the reliability and efficiency of SSA-based LWAs. Overall, this study presents SSA as a promising alternative for small aggregates, promoting a circular economy in the construction industry. In producing LWA by turning waste into a value-added product, SSA is a sustainable way to model modern construction practices, contributing to greener and more efficient industries. Keywords: Sewage Sludge Ash (SSA), Lightweight Aggregates (LWA), Sustainable Construction, Eco-friendly Building Materials, Environmental Impact.

Citation

Nadia TEBBAL , ,(2024-11-15), Utilization of Sewage Sludge Ash in Lightweight Aggregate Production for Sustainable Construction,International Symposium on Ceramics and Composite Materials ISCCM,,ISPARTA, TÜRKİYE.

This paper investigates the alternative use of sewage sludge ash (SSA) for the production of light weight aggregate (LWA) for sustainable construction The main objective is to investigate how SSA can be successfully reused to produce construction materials without reducing environmental contributions. The study examines the processes for converting SSA into lightweight aggregates, focusing on the technological processes and factors that make this application possible. Key benefits include significant reductions in the overall weight of concrete structures, reduced transportation and housing costs, and improved thermal insulation, which improves energy efficiency in buildings to the sky In addition, the paper discusses the environmental benefits of implementing SSA in LWA operations, such as waste disposal reduction, greenhouse gas emission reduction, natural a will be preserved and also discusses technical challenges including the need for continuous quality improvement and compliance with regulatory standards. Research emphasizes the importance of quality qualitative and strategic approaches to ensure the reliability and efficiency of SSA-based LWAs. Overall, this study presents SSA as a promising alternative for small aggregates, promoting a circular economy in the construction industry. In producing LWA by turning waste into a value-added product, SSA is a sustainable way to model modern construction practices, contributing to greener and more efficient industries.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2024-11-15), Utilization of Sewage Sludge Ash in Lightweight Aggregate Production for Sustainable Construction,International Symposium on Ceramics and Composite Materials,Süleyman Demirel University, Isparta, Turkey

– The civil engineering industry is rapidly confronting two challenges: minimizing the harmful effects of construction on the environment and managing industrial waste. The concept of turning trash into resources is a fresh approach to addressing these problems, offering innovative solutions in line with the principles of sustainability and resource efficiency. This study looks at the potential benefits of integrating various industrial wastes such as fly ash, slag, and recycled construction materials into civil engineering processes. Recycling these wastes may significantly reduce our reliance on virgin resources, landfill usage, and construction project carbon footprints. The use of industrial byproducts in road construction, where recycled materials assist sustainable infrastructure, and in concrete production, where waste materials enhance the durability and performance of concrete, are two areas of focus. This article will also discuss the use of waste materials in soil stabilization, with a focus on the long-term benefits for both improved soil quality and structural stability. This article, using case studies and the most recent research, demonstrates the economic and environmental advantages of waste valuation in civil engineering. It also discusses the opportunities and technical challenges of using these strategies more broadly. By encouraging the use of waste-derived materials and converting rubbish into valuable resources that aid in the creation of a built environment that is resilient and environmentally friendly, the civil engineering sector can set the norm for sustainable building. Keywords – Sustainability, Valorization, Industrial Waste, Resource Efficiency, Innovation.

Citation

Nadia TEBBAL , ,(2024-11-10), Transforming Waste into Resources: Pioneering Approaches in Civil Engineering,,3rd International Conference on Contemporary Academic Research ICCAR,,Konya, Turkey.

The civil engineering industry is rapidly confronting two challenges: minimizing the harmful effects of construction on the environment and managing industrial waste. The concept of turning trash into resources is a fresh approach to addressing these problems, offering innovative solutions in line with the principles of sustainability and resource efficiency. This study looks at the potential benefits of integrating various industrial wastes such as fly ash, slag, and recycled construction materials into civil engineering processes. Recycling these wastes may significantly reduce our reliance on virgin resources, landfill usage, and construction project carbon footprints. The use of industrial byproducts in road construction, where recycled materials assist sustainable infrastructure, and in concrete production, where waste materials enhance the durability and performance of concrete, are two areas of focus. This article will also discuss the use of waste materials in soil stabilization, with a focus on the long-term benefits for both improved soil quality and structural stability. This article, using case studies and the most recent research, demonstrates the economic and environmental advantages of waste valuation in civil engineering. It also discusses the opportunities and technical challenges of using these strategies more broadly. By encouraging the use of waste-derived materials and converting rubbish into valuable resources that aid in the creation of a built environment that is resilient and environmentally friendly, the civil engineering sector can set the norm for sustainable building.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2024-11-10), Transforming Waste into Resources: Pioneering Approaches in Civil Engineering,3rd International Conference on Contemporary Academic Research,Konya, Turkey

The manufacture of cement requires the use of raw materials and fuel, and generates significant carbon dioxide emissions, prompting the exploration of cement alternatives with less environmental impact. In this context, alkali-activated cements have attracted the attention and interest of researchers as an alternative to reduce negative effects. Research and work indicate that alkali-activated materials have the potential to become an alternative binder to portland cement. The result is high compressive strength, fire resistance and acid resistance. Many studies examine the effect of portland cement combined with geopolymer pastes produced from low-calcium fly ash from the power station, on the developement of mechanical strength under curing conditions, they concluded that the combined materials obtained better resistance results, several researchers in their study of the alkaline activation of blast furnace slag, concluded that thermal hardening had a benific effect on strength, and that the limiting hardening temperature at which strength reached its best result was 80°C. The intermediate calcium content system is due to the combination of low and high calcium precursors, in which N-A-S-H and C-A-S-H gels coexist, so the choice of activator depends on the nature of the material composition. The aim of this article is to present a literature review on: alkaline activation of binders and thier environmental impact.

Citation

Hanane ZADRI , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Mekki MAZA , ,(2024-10-31), Exploring alkali-activated aluminosilicate materials as sustainable alternatives: A view of activation processes depending on the calcium present in the system,Journées d’Etude de Génie Civil et Mécanique 2024 « JEGCM24 »,universite de M'sila. Algeria

Exploring alkali-activated aluminosilicate materials as sustainable alternatives : A view of activation processes depending on the calcium present in the system, Journées d’Etude de Génie Civil et Mécanique 2024« JEGCM24

Citation

Nadia TEBBAL , ,(2024-10-30), Exploring alkali-activated aluminosilicate materials as sustainable alternatives : A view of activation processes depending on the calcium present in the system,Journées d’Etude de Génie Civil et Mécanique 2024« JEGCM24,university of M'sila

The effect of geopolymerization on eco-friendly concrete, Journées d’Etude de Génie Civil et Mécanique 2024« JEGCM24 »

Citation

Nadia TEBBAL , ,(2024-10-30), The effect of geopolymerization on eco-friendly concrete,Journées d’Etude de Génie Civil et Mécanique 2024«,university of M'sila

Studies on the Valorization of mining waste in the construction sector: A literature Review.

Citation

Nadia TEBBAL , ,(2024-10-30), Studies on the Valorization of mining waste in the construction sector: A literature Review.,Journées d’Etude de Génie Civil et Mécanique 2024« JEGCM24 »,university of M'sila

Abstract – The civil engineering industry is rapidly confronting two challenges: minimizing the harmful effects of construction on the environment and managing industrial waste. The concept of turning trash into resources is a fresh approach to addressing these problems, offering innovative solutions in line with the principles of sustainability and resource efficiency. This study looks at the potential benefits of integrating various industrial wastes—such as fly ash, slag, and recycled construction materials—into civil engineering processes. Recycling these wastes may significantly reduce our reliance on virgin resources, landfill usage, and construction project carbon footprints. The use of industrial byproducts in road construction, where recycled materials assist sustainable infrastructure, and in concrete production, where waste materials enhance the durability and performance of concrete, are two areas of focus. This article will also discuss the use of waste materials in soil stabilization, with a focus on the long-term benefits for both improved soil quality and structural stability. This article, using case studies and the most recent research, demonstrates the economic and environmental advantages of waste valuation in civil engineering. It also discusses the opportunities and technical challenges of using these strategies more broadly. By encouraging the use of waste-derived materials and converting rubbish into valuable resources that aid in the creation of a built environment that is resilient and environmentally friendly, the civil engineering sector can set the norm for sustainable building. Keywords – Sustainability, Valorization, Industrial Waste, Resource Efficiency, Innovation

Citation

Nadia TEBBAL , ,(2024-08-25), Transforming Waste into Resources: Pioneering Approaches in Civil Engineering,5th International Conference on Engineering and Applied Natural Sciences,Konya, Turkey

This review investigates the integration of self-healing materials and sewage sludge ash (SSA) as a pioneering strategy for sustainable and resilient construction. Self-healing materials, with their ability to autonomously repair microcracks, offer a game-changing solution to enhance the durability and lifespan of infrastructure. Simultaneously, SSA, a by-product of wastewater treatment, is presented as a sustainable alternative to traditional cement and aggregates, reducing landfill waste and mitigating the environmental impact of construction activities. The review synthesizes current advancements in combining these two technologies, focusing on their mutual benefits for mechanical properties, environmental sustainability, and structural integrity. It highlights the ability of SSA to improve the microstructural properties of concrete while preserving the functionality of self-healing agents, such as bacterial spores and polymer capsules. Furthermore, it discusses the challenges of optimizing SSA integration and ensuring compatibility with self-healing systems. By analyzing recent developments and identifying research gaps, this review underscores the transformative potential of this dual approach. It envisions a future where SSA and self-healing materials jointly contribute to the development of eco-friendly and durable infrastructure, aligning with global sustainability and circular economy goals.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2024-08-25), Revolutionizing Green Construction: A Review on Self-Healing Materials and Sewage Sludge Ash Integration,4th International Conference on Frontiers in Academic Research,Konya, Turkey

Sewage sludge ash (SSA) has emerged as a promising supplementary cementitious material (SCM) to enhance the performance and durability of cementitious materials This paper presents a comprehensive review of the characterization and consumption of SSA role in cement structure gives. Chemical composition analysis reveals the presence of silica, alumina, and other oxides important for pozzolanic reactivity. Mineralogical analysis identifies crystalline and amorphous phases, elucidating the potential of SSA. Physical properties such as surface specificity and particle size distribution influence the performance and mechanical properties of cementitious materials Evaluation of pozzolanic activity by different methods determines the amount of SSA contribution to strength development. The study of hydration kinetics clarifies the early life and long-term performance of cementitious systems containing SSA. Technical testing shows increased compressive, tensile and flexural strength of SSA-modified concrete. Developmental performance studies confirm resistance to chloride penetration, sulfate attack, alkali silica reaction (ASR), and carbonation, ensuring durability of SSA-based cement products This study provides valuable insights into Effective application of SSA characteristics and applications to sustainable building practices Simple.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2024-07-19), Characterization and application of sewage sludge in cement products,International Conference on Engineering, Natural Sciences, and Technological Developments (ICENSTED 2024),Erdek, Turkey

Development of geopolymer binders based on industrial waste with different treatment methods: A review

Citation

Nadia TEBBAL , ,(2024-06-19), Development of geopolymer binders based on industrial waste with different treatment methods: A review,Conférence on Engineering, Natural Sciences, and Technological Developments,Erdek/Turkey

Effect Of Using Phosphate Sludge In Geoplymerization: A Review

Citation

Nadia TEBBAL , ,(2024-06-19), Effect Of Using Phosphate Sludge In Geoplymerization: A Review,International Conference on Engineering, Natural Sciences, and Technological Developments (ICENSTED 2024),Erdek , Turkiye

Valorization of mining waste into construction materials: Literature review

Citation

Nadia TEBBAL , ,(2024-06-19), Valorization of mining waste into construction materials: Literature review,International Conference on Engineering, Natural Sciences, and Technological Developments (ICENSTED 2024),,Erdek , Turkiye

Fresh and hardened proprieties and durability of self compacting repair mortar made with ceramic powder as cement substitute

Citation

Nadia TEBBAL , ,(2024-06-19), Fresh and hardened proprieties and durability of self compacting repair mortar made with ceramic powder as cement substitute,International Conference on Engineering , Natural science , and Technological developments (ICENSTED2024),,Erdek , Turkiye

Sewage sludge ash (SSA) has emerged as a promising supplementary cementitious material (SCM) to enhance the performance and durability of cementitious materials This paper presents a comprehensive review of the characterization and consumption of SSA role in cement structure gives. Chemical composition analysis reveals the presence of silica, alumina, and other oxides important for pozzolanic reactivity. Mineralogical analysis identifies crystalline and amorphous phases, elucidating the potential of SSA. Physical properties such as surface specificity and particle size distribution influence the performance and mechanical properties of cementitious materials Evaluation of pozzolanic activity by different methods determines the amount of SSA contribution to strength development. The study of hydration kinetics clarifies the early life and long-term performance of cementitious systems containing SSA. Technical testing shows increased compressive, tensile and flexural strength of SSA-modified concrete. Developmental performance studies confirm resistance to chloride penetration, sulfate attack, alkali silica reaction (ASR), and carbonation, ensuring durability of SSA-based cement products This study provides valuable insights into Effective application of SSA characteristics and applications to sustainable building practices Simple. Keywords: Sewage sludge ash (SSA), Cement-based materials, Mechanical properties, Durability performance, Alkali-silica reaction (ASR).

Citation

Nadia TEBBAL , ,(2024-06-19), Characterization and application of sewage sludge in cement products,, International Conference on Engineering, Natural Sciences, and Technological Developments (ICENSTED 2024),Erdek , Turkiye

Disposal of waste glass derived from bottle or packaging glass, flat glass, domestic glass is one of the major environmental defies. Moreover, the remnants of bricks resulting from the remnants of buildings are also considered an important factor in polluting the environment due to the difficulty of filling or getting rid it. The aim of this study is to valorize these wastes through chemical activation to be an environmentally friendly material. The Microstructure, compressive strength, setting time, drying shrinkage, water absorption of different pastes produced by clear glass (CG), green glass (GG) and brick waste (BP) activated were tested and recorded after curing for 3, 7, 28 and 365 days. Five samples of pastes were mixed in proportions represented by: 100% GP (GP), 100% GGP (GGP), 100% BP (BP), 90% GP + 10% BP (GPB) and 90% GGP + 10% BP (GGPB). Various parameters considered in this study include sodium hydroxide concentrations (10 mol/l); 0.4 as alkaline liquid to binder ratio; 2.5 as sodium silicate to sodium hydroxide ratio and cured at 60°C for 24 hours. Experimental results revealed that the addition of 10% of BP resulted in an increased strength performance of geopolymer paste especially with GGPB compared to GGP in 365 days. In addition, the 10% amount of BP increases the absorption and shrinkage rate of geopolymer pastes (GPB and GGPB) by reducing the setting time. SEM results revealed that the addition of BP and GP resulted in a dense structure.

Citation

Nadia TEBBAL , , (2024-06-01), Microstructure and mechanical properties of ternary pastes activated with multi-colors glass and brick wastes, Advances in Concrete Construction, Vol:17, Issue:3, pages:167-177, Advances in Concrete Construction

Utilisation des solutions chimiques avec les déchets industriels pour créer des matériaux composites, Le 2ème colloque national de chimie (CNC2@2024) 6 - 7 mai 2024

Citation

Nadia TEBBAL , ,(2024-05-07), Utilisation des solutions chimiques avec les déchets industriels pour créer des matériaux composites,Le 2ème colloque national de chimie (CNC2@2024),university of M'sila

Use of fly ash in the manufacture of ceramics to improve several properties,

Citation

Nadia TEBBAL , ,(2024-04-18), Use of fly ash in the manufacture of ceramics to improve several properties,,2nd International Conference on Scientific and Innovative Studies,,Konya, Turkey

Wastewater generated from wastewater treatment poses challenges for disposal due to high organic content and potential environmental impacts but alternative wastewater treatment options are being developed in concrete production research. This abstract looks at the feasibility and potential benefits of incorporating wastewater into concrete mixes. Through rigorous characterization and processing, sewage sludge can act as a filler, providing long-term benefits and improving concrete properties Challenges such as changes in water a it is a matter of internal and regulatory constraints of the dirt Yoga: Materials- Can address weed-management issues while promoting efficiency and sustainability. Keywords – Sewage sludge, concrete production, sustainability, resource recovery, environmental impact.

Citation

Nadia TEBBAL , ,(2024-04-18), Harnessing Sewage Sludge for Sustainable Concrete Manufacturing,2nd International Conference on Scientific and Innovative Studies ICSIS 2024,Konya, Turkey.

Wastewater generated from wastewater treatment poses challenges for disposal due to high organic content and potential environmental impacts but alternative wastewater treatment options are being developed in concrete production research. This abstract looks at the feasibility and potential benefits of incorporating wastewater into concrete mixes. Through rigorous characterization and processing, sewage sludge can act as a filler, providing long-term benefits and improving concrete properties Challenges such as changes in water a it is a matter of internal and regulatory constraints of the dirt Yoga: Materials- Can address weed-management issues while promoting efficiency and sustainability.

Citation

Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2024-04-18), Harnessing Sewage Sludge for Sustainable Concrete Manufacturing,2nd International Conference on Scientific and Innovative Studies ICSIS 2024,Konya, Turkey

Ceramic powder utilisation in mortar production.

Citation

Nadia TEBBAL , ,(2024-01-27), Ceramic powder utilisation in mortar production.,1. Bilsel International Korykos Scientific Researches and Innovation Congress,,Mersin/Türkiye.

A STUDY BETWEEN THE LITERATURE AND LABORATORY EXPERIMENTS OF CHARACTERISTICS OF MORTAR FORMED BY CALCINED KAOLIN

Citation

Nadia TEBBAL , ,(2023-12-27), A STUDY BETWEEN THE LITERATURE AND LABORATORY EXPERIMENTS OF CHARACTERISTICS OF MORTAR FORMED BY CALCINED KAOLIN,V. INTERNATIONAL ANKARA MULTIDISCIPLINARY STUDIES CONGRESS ,27-29 January 2023,,Ankara, Türkiye.

The search for an alternative to cement has become an environmental and strategic necessity to reduce the effects of global warming and preserve the energy capacity of energy-importing and energy-exporting countries alike. Geopolymer materials are classified as green materials and may be the alternative solution proposed at the present time due to their advantages. The results of research and studies have shown that these geopolymer materials possess superior mechanical and physical properties, including high early strength, good chemical resistance, low shrinkage, and good thermal resistance. The rise in temperatures in recent years and the global warming scenario has led to an increase in demand for heat-insulating materials, especially in the construction sector. This review includes, based on previous research, previous knowledge of more about the basics of these geopolymer materials the raw materials that go into preparing these compounds and the factors affecting their properties. The good thermal performance of these compounds is considered important and vital to exploit in the production of efficient insulating materials, and it may be a sustainable solution in re-exploiting mineral waste in order to preserve natural resources

Citation

Nadia TEBBAL , ,(2023-12-18), A bibliographic study on geopolymers and the valorization of mining waste,The 1st Scientific Days on Materials and Their Applications (SDMA’2023),Université de Biskra, Algérie,Université de Biskra, Algérie

,"Effect Of Temperature On Geopolimerization", The 1st Scientific Days on Materials and Their Applications (SDMA’2023), Biskra.

Citation

Nadia TEBBAL , ,(2023-12-18), Effect Of Temperature On Geopolimerization",The 1st Scientific Days on Materials and Their Applications (SDMA’2023),Biskra.

A bibliographic study on geopolymers and the valorization of mining waste, the 1st scientific days on materials and their applications (SDMA 2023) , Biskra.

Citation

Nadia TEBBAL , ,(2023-12-18), A bibliographic study on geopolymers and the valorization of mining waste,the 1st scientific days on materials and their applications (SDMA 2023),Biskra.

this paper reviews the use of the waste product (ceramic industry) for construction purpose. Now a days they are rapid growth in urban andindustrial is more and the demand is being increased day by day. The waste generated from ceramic industry is usedas a partial replacement in cement. To eradicate the demand of construction material cement is being replaced in our project as ceramıc waste accordingly in the range of 0%, 5%, 10%, 20%, and 30% by weight of cement for mix. Self-compacting mortar mixtures were produced, tested and compared in terms of compressive, flexural and split tensile strength with the conventional Self-compacting mortar. These tests were carried out toevaluate the mechanical properties for the test results of 7, 14, 28 days for compressive strength, flexural Strength and split tensile strength. For this purpose, design parameters like water to binder ratio (w/b), water to cement ratio (W/C), superplasticizer dosage (SP) (kg/m3) and replacement percentage of ceramic waste are studied on the slump flow. It is observed that with respect to different grades of SCC, designed parameters affects the fresh and strength properties of SCC

Citation

Nadia TEBBAL , ,(2023-12-17), Application of waste ceramic powder as a cement replacement in Self-compacting mortar,Application of waste ceramic powder as a cement repla BİLSEL INTERNATIONAL TRUVA SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS,ÇANAKKALE /,,(2023-12-17), TÜRKİYE

Application of waste ceramic powder as a cement replacement in Self- compacting mortar”

Citation

Nadia TEBBAL , ,(2023-12-16), Application of waste ceramic powder as a cement replacement in Self- compacting mortar”,”, BİLSEL international truva scientific researches and innovation congress,ÇANAKKALE / TÜRKİYE

The search for an alternative to cement has become an environmental and strategic necessity to reduce the effects of global warming and preserve the energy capacity of energy-importing and energy-exporting countries alike. Geopolymer materials are classified as green materials and may be the alternative solution proposed at the present time due to their advantages. The results of research and studies have shown that these geopolymer materials possess superior mechanical and physical properties, including high early strength, good chemical resistance, low shrinkage, and good thermal resistance. The rise in temperatures in recent years and the global warming scenario has led to an increase in demand for heat-insulating materials, especially in the construction sector. This review includes, based on previous research, previous knowledge of more about the basics of these geopolymer materials the raw materials that go into preparing these compounds and the factors affecting their properties. The good thermal performance of these compounds is considered important and vital to exploit in the production of efficient insulating materials, and it may be a sustainable solution in re-exploiting mineral waste in order to preserve natural resources. Keywords: Geopolymer materials, Thermal resistance, The global warming, Heat-insulating, Mineral waste

Citation

Nadia TEBBAL , ,(2023-12-13), Bibliographic Study On Geopolymers And The Valorization Of Mining Waste,,11th International Mardin Articlu scientific researches conference,Mardin , Turkiye

Alkali-activation of aluminosilicate materials on geopolymerization, 1ere journée Scientifique en matériaux et ses application accueilli par Université de Mohamed Khider, Biskra, Algérie,2023.

Citation

Nadia TEBBAL , ,(2023-11-29), Alkali-activation of aluminosilicate materials on geopolymerization,1ere journée Scientifique en matériaux et ses application,Université de Mohamed Khider, Biskra

Comprehending the mechanical characteristics of concrete is paramount for its efficient deployment in construction. This investigation endeavors to predict these properties utilizing equivalent mortar, furthering previous inquiries on the topic. Literature suggests a viable approach to create concrete through a method employing both natural and crushed aggregates. This technique considers the corresponding mortar, amalgamated with crushed (SC) and dune sand (SD), as a novel mortar. Implementing this method could curtail the consumption of natural resources while conserving the mechanical attributes in both fresh (flow) and hardened states (strength and durability). This approach aims to anticipate the mechanical performance of concretes formulated from equivalent mortar data. Five mixtures were constituted to discern the optimal blend from a binary amalgamation of crushed coarse aggregates (30% fraction 3/8 and 70% fraction of 8/15) sized 3.8mm and 8.15mm, alongside five mixed sand percentages: (30% SC+70% SD), (40% SC+60% SD), (50% SC+50% SD), (60% SC+40% SD), and (70% SC+30% SD). The application of super plasticizer was investigated, and the compressive strength function of coarse aggregate was ascertained at intervals of 7, 14, and 28 days. The mechanical strength was determined at the 28-day mark. The empirical study indicates that density attains its zenith when a 40% mortar is incorporated into the concrete matrix. Conversely, with a 50% SC composition within the mixed sand, the mechanical strengths achieve acceptable values with moderate CS dosages. Specification tests reveal that incorporating 50% to 70% mortar into the concrete matrix can yield high-quality concrete.

Citation

Nadia TEBBAL , , (2023-10-31), Predicting Mechanical Properties of Concrete Using Equivalent Mortar: A Comparative Study, Annales de Chimie - Science des Matériau, Vol:47, Issue:5, pages:265-271, IIETA

Comprehending the mechanical characteristics of concrete is paramount for its efficient deployment in construction. This investigation endeavors to predict these properties utilizing equivalent mortar, furthering previous inquiries on the topic. Literature suggests a viable approach to create concrete through a method employing both natural and crushed aggregates. This technique considers the corresponding mortar, amalgamated with crushed (SC) and dune sand (SD), as a novel mortar. Implementing this method could curtail the consumption of natural resources while conserving the mechanical attributes in both fresh (flow) and hardened states (strength and durability). This approach aims to anticipate the mechanical performance of concretes formulated from equivalent mortar data. Five mixtures were constituted to discern the optimal blend from a binary amalgamation of crushed coarse aggregates (30% fraction 3/8 and 70% fraction of 8/15) sized 3.8mm and 8.15mm, alongside five mixed sand percentages: (30% SC+70% SD), (40% SC+60% SD), (50% SC+50% SD), (60% SC+40% SD), and (70% SC+30% SD). The application of super plasticizer was investigated, and the compressive strength function of coarse aggregate was ascertained at intervals of 7, 14, and 28 days. The mechanical strength was determined at the 28-day mark. The empirical study indicates that density attains its zenith when a 40% mortar is incorporated into the concrete matrix. Conversely, with a 50% SC composition within the mixed sand, the mechanical strengths achieve acceptable values with moderate CS dosages. Specification tests reveal that incorporating 50% to 70% mortar into the concrete matrix can yield high-quality concrete.

Citation

Nadia TEBBAL , , (2023-10-01), Predicting Mechanical Properties of Concrete Using Equivalent Mortar: A Comparative Study., Annales de Chimie Science des Matériaux, Vol:47, Issue:5, pages:265-271, Annales de Chimie Science des Matériaux

Achieving environmentally friendly compounds with high mechanical resistance, lower density, and high thermal resistance is a topic of research for most of those interested in this field. Geopolymers are threedimensional amorphous materials made of aluminosilicates in a normal environment or at high temperatures through alkaline activation of aluminosilicate materials. This activation, along with Add a chemical foaming agent (aluminum powder, hydrogen peroxide, sodium oleate...) led to the synthesis of inorganic foam. Geopolymer foams are high temperature resistant materials characterized by mechanical and chemical stability and low post-foaming shrinkage. Pore size is directly related to changing the concentration of the foaming agent, and studies have shown that, by tracking CT images, up to 24% open porosity can be achieved without significantly affecting other properties. addition to geopolymers enjoying these advantages, we find some studies interested in obtaining other advantages, including adding another factor that (PCM).Thermal properties of geopolymer concrete (GPC) are enhanced by adding phase change material (PCM) capsules. Thermal and structural tests were conducted to investigate the effects of capsules on the properties of produced GPC. The produced thermally enhanced GPC can reduce heat transmission to indoors in the hot climates and its compressive strength is acceptable for nonloadbearing wall components.

Citation

Nadia TEBBAL , ,(2023-09-26), A bibliographic study on the effectiveness of geopolymers in the field of thermal insulation,3 rd International Conference on Innovative Academic Studies,,Konya, Turkey

Sludge valorization, also called sludge management, is an important field in the treatment of wastewater and solid waste worldwide. Sludge is the solid byproduct generated during the treatment of wastewater in wastewater treatment plants. They often contain organic matter, mineral elements and other contaminants, making them potentially harmful to the environment if not properly managed. However, there are many ways to recover sludge and use it beneficially rather than simply disposing of it. The areas of sludge recovery are: Composting, Agricultural use, Energy production, Biogas production and Production of construction materials. Using sludge to make bricks has many environmental benefits, including reducing waste, reducing demand for natural resources, decreasing greenhouse gas emissions, and creating sustainable building products. However, it is essential to comply with local and national environmental regulations and implement strict quality controls to ensure the safety and quality of bricks made from sludge.

Citation

Nadia TEBBAL , ,(2023-09-26), Improving sludge management and transforming waste into sustainable resources,3rd International Conference on Innovative Academic Studies,,Konya, Turkey.

The use of sewage sludge ash, also known as sewage sludge incineration ash (SSIA), as a construction material has gained attention in recent years. This study aims to investigate the effect of SSIA on the durability of equivalent mortar exposed to high temperatures. The exposure of mortar containing SSIA to high temperatures can have various effects on its durability. Some of the potential effects include a reduction in mechanical strength, degradation of the microstructure, weight loss, and the formation of new mineral phases. However, these effects can vary depending on the composition of the SSIA and other components of the mortar, as well as the specific conditions of high-temperature exposure. Further experimental studies are needed to provide more accurate evaluations of the impact of SSIA on the durability of equivalent mortar exposed to high temperatures.

Citation

Nadia TEBBAL , ,(2023-09-26), Assessing the Durability of Mortar Incorporating Sewage Sludge Ash under High-Temperature Exposure,3rd International Conference on Innovative Academic Studies,,Konya, Turkey.

Geopolymers belong to the aluminosilicate family, essentially composed of a raw material that may be natural, a co-product or an industrial by-product such as blast-furnace slag, fly ash and metakaolin, or another material that essentially contains silica (SiO2) and alumina (Al2O3) and an alkaline solution. The use of geopolymers as cementitious materials is currently growing due to their excellent properties and efficiencies, such as low CO2 emission, high compressive strength, low permeability, enhanced durability, thermal resistance and excellent stability in acidic and alkaline environments. Geopolymers are obtained by alkaline activation, often based on sodium or potassium silicate. Many studies have shown that aluminosilicate materials are activated depending on the type of material used .Alkali-activated mortars were found to have higher compressive strength than cement mortars. Alkali-activated materials represent one of the alternatives available that could replace PC in terms of economy, ecology, mechanical performance and durability. Heat treatment has an influence on the reactivity of materials, and studies show that mortars based on uncalcined (raw) materials give lower strengths than control mortars based on 100% cement. Calcination changes the structure of the material to become amorphous, which improves the compressive strength of mortars, so thermal analysis has a positive influence on the compressive strength of mortars. The mechanical activation of materials containing a percentage of silica and/or alumina consists in increasing grain fineness (specific surface area) through advanced grinding. Heat treatment of raw materials shows significant effects on the mechanical behavior of synthesis product were this later enhance mechanical strength, But it considering more expensive then mechanical activation which more economical. However chemical activation has an interesting effect on the development of compressive strength, but is expensive and difficult to process in an aggressive environment.

Citation

Nadia TEBBAL , ,(2023-09-26), Different types of activation of supplementary cementing materials,3rd International Conference on Innovative Academic Studies,Konya, Turkey.,Konya, Turkey.

Geopolymerization is the chemical process that brings together all the reactions transforming solid rich in silica (Si) and alumina (Al), such as fly ash, blast furnace slag or clay, an alkaline activator, such as sodium hydroxide (NaOh) or potassium hydroxide (Koh), to form an alkaline solution, under different experimental conditions, into aluminosilicate gel. This chemical reaction, called polymerization, enables the elements present in the raw materials to bind together to form a solid three-dimensional network, similar to that of Portland cement. This network gives geopolymeric materials high mechanical strength. This is an alternative to traditional methods of manufacturing materials such as Portland cement, which generate significant quantities of greenhouse gases (CO2) during production. The reaction mechanism for geopolymer formation comprises three stages: a dissolution/hydrolysis stage, a restructuring stage and a final polycondensation stage. Several parameters can influence the geopolymerization process, such as the alumino-silicate source (precursor type), particle texture and morphology, particle size and specific surface, alkaline activator type and concentration, water content, the silica content, as well as temperature, which has an effect not only on the reaction rate, but also on the microstructure and mechanical properties of the geopolymers, such as the texture of the final material, mechanical strength, homogeneity, porosity and thermal stability. Experimental studies and tests are often carried out to determine the appropriate temperature parameters for obtaining the desired properties of the geopolymer material.

Citation

Nadia TEBBAL , ,(2023-09-26), EFFECT OF TEMPERATURE ON GEOPOLYMERIZATION,3rd International Conference on Innovative Academic Studies,,Konya, Turkey.

Different types of activation of supplementary cementing materials

Citation

Nadia TEBBAL , ,(2023-09-26), Different types of activation of supplementary cementing materials,Conférence on Innovative Studies,Konya /Turkey

This study examines the effect of aluminum (Al) waste additions on the mechanical performance of mortars at high temperatures. The tested mortars have been formulated with different proportions (0%, 2.5%, 5%, 7.5%, and 10%) by weight of sand after being exposed to five temperatures (50 °C, 150 °C, 200 °C, 400 °C, and 600 °C) without imposed load during heating. Workability, setting time of cement, air content, density, mass loss of mortar, thermal conductivity, porosity and mechanicals strength have been examined. The test results indicate a considerable decrease in workability and strength density of the mortar with the addition of Al. This composite has a well thermal conductivity result with 2.5Al and environmentally friendly than ordinary mortar. Further, the experimental data obtained have suggested that the compressive and the flexural tensile strength have been significantly reduced by 90 % in the mortar samples incorporating 10% Al after being exposed to the high temperature of 600 °C. Moreover, the mechanical strength of that mortar has been quite high at the age of 28 days at elevated temperatures in comparison with that measured at 20 °C. The strength of the mortar with Al can be sufficient for some applications where a lightweight, low-strength mortar is required. The use of Al in the production of low-strength concrete can contribute to more sustainable construction.

Citation

Nadia TEBBAL , , (2023-09-01), Effect of Aluminum Waste on Mortar Thermo-Mechanical Behavior, International Review of Civil Engineering (IRECE), Vol:14, Issue:5, pages:415-424, Praise Worthy Prize

This study examines the mechanical effects of the addition of transparent glass in the form of waste glass powder on the mechanical properties of concrete in aggressive environments.Glass is used as an additive after conversion to fine powder and mixed with cement at 0% , 5% and 10% For the construction of concrete with additives and then poured into molds. And then treated in fresh fresh water, salt solution where the salt is 5% sodium chloride and finally in MgSO4 solution at 5% concentration for 7, 14 and 28 days, then mechanical tests are performed when the test used in this research is compressive strength and porosity. It was observed that there were differences in compressive strength when immersed in different solvents. Samples immersed in water have higher resistance than those immersed in sodium chloride MgSO4 solution and increase with immersion time. The results show that the addition of glass powder improves the flow of concrete, also it further consolidates the cementitious matrix which makes it difficult for aggressive compounds to penetrate into the concrete. Keywords: glass, addition, concrete, durability, aggressive environment,Porosity, Compressive Strength.

Citation

Nadia TEBBAL , ,(2023-08-26), Durability in aggressive environments of concrete incorporating glass powder,3. INTERNATIONAL MEDITERRANEAN SCIENTIFIC RESEARCH AND INNOVATION CONGRESS,,ANTALYA / TURKEY

In the construction field, the current research is oriented to the recovery of materials in general, is especially local materials to fight both the soaring prices that knows the way and at the same time ensured the balance nature by solving the problem of pollution that allows the survival of several species that are the major links to the balance of nature. The objective of our work is to lighten the micro-concrete by adding different percentages of polystyrene, and to improve the fluidity and the mechanical strength of the micro-concrete by the incorporation of adjuvant. The results obtained from this research confirm that the rate of 30% of polystyrene gives the most alleviation, 1.5% of adjuvant gives good fluidity and increases the mechanical strength.

Citation

Nadia TEBBAL , ,(2023-08-22), Micro concrete admixed with white cement with polystyrene,11 th INTERNATIONAL SCIENTIFIC RESEARCHES CONFERENCE,ADANA, TURKEY

Several studies analyzed the effect of these additions on the physical and mechanical properties as well as the durability of concrete and mortar. However, few studies were conducted on the effect of local metakaolin on mechanical properties and durability of mortar. The main purpose of this paper is to analyze the performance of mortar with local metakaolin. The preparation of the metakaolin was carried out by calcination of kaolin at a temperature of 850 °C for a period of 3 hours according to a previous study of one of the authors.

Citation

Nadia TEBBAL , ,(2023-08-22), valorization of a mining waste between the literature and the experimental tests,Cukurova 11th International Scientific Researches Conference,Adana, Turkiye

The purpose of this study is to recover mineral residues as an additive in cement-based building materials. It is part of a sustainable development approach. The use of recovered and recyclable industrial residues in partial replacement of Portland cement reduces greenhouse gas emissions and results in the manufacture of cement with a lower environmental impact. Using various experimental techniques, particular attention is paid to the behaviour of the ceramic powder finely crushed and chemically activated associated with Portland cement. This study confirms the improvement in the physicochemical and mechanical properties of cements with the addition of ceramic powder, which augurs well for its use as a cement . Keywords: Sanitary ceramic waste; Fillers, Mortars; Properties

Citation

Nadia TEBBAL , ,(2023-08-15), Effect of ceramic addition on the properties of mortars,1. BİLSEL INTERNATIONAL AHLAT SCIENTIFIC RESEARCHES CONGRESS,BİTLİS/TURKEY

This paper investigated the effects of brick dust and metal fiber on the mechanical and physical properties of cement mortars exposed to high temperatures experimentally and statistically. For this purpose, the mixes containing marble dust (0%, 5%, and 10% by volume) and metal fiber (0 kg/m 3 , 1 kg/m, 2 kg/m 3 , 5 kg/m 3 ) were prepared. The cement mortars' compressive strength and porosity value were determined after exposure to high temperatures (300, 500, and 700 C). The percentage of brick dust, amount of metal fiber, and degree of temperature were changed to explore their effects on specimens' compressive strength and porosity values. Finally, experimental findings were compared with statistical results, and a good agreement between them was achieved. Keywords: brick Dust, Metal Fiber, Cement Mortar,Temperature, Porosity, Compressive Strength.

Citation

Nadia TEBBAL , ,(2023-08-10), PERFORMANCE EVALUATION OF CEMENT MORTARS CONTAINING BRICK DUST AND METAL FIBER EXPOSED TO A HIGH TEMPERATURE,9th INTERNATIONAL BLACK SEA COASTLINE COUNTRIES SCIENTIFIC RESEARCH CONFERENCE,Ankara, Turkiye,Ankara, Turkiye

The objective of this research work is to study and better understand the behavior at high temperatures of fiber concretes and the effect of the evolution of the temperature on their mechanical behavior, by evaluation of the loss of residual mass, and the resistance residual in compression and tension. The concretes are subjected to different heating-cooling cycles up to a maximum temperature of 300°C ; 500°C and 700°C at the age of 28 days. This study showed that the residual strength of fiber-reinforced concrete subjected to a very high temperature decreased compared to concrete (not subjected to a very high temperature). Keywords: Fiber concrete, Metallic fibers, Cement, high Temperature, mechanical characteristics.

Citation

Nadia TEBBAL , ,(2023-08-07), EXPERIMENTAL STUDY OF FIBER-REINFORCED CONCRETE SUBJECTED TO TEMPERATURES OF 500°C AND 700°C,3rd INTERNATIONAL CONGRESS ON CONTEMPORARY SCIENTIFIC RESEARCH,Adana, Türkiye

this study examines the effect of aluminum (Al) waste additions on the mechanical performance of mortars at high temperatures. The tested mortars have been formulated with different proportions (0%, 2.5%, 5%, 7.5%, and 10%) by weight of sand after being exposed to five temperatures (50 °C, 150 °C, 200 °C, 400 °C, and 600 °C) without imposed load during heating. Workability, setting time of cement, air content, density, mass loss of mortar, thermal conductivity, porosity and mechanicals strength have been examined. The test results indicate a considerable decrease in workability and strength density of the mortar with the addition of Al. This composite has a well thermal conductivity result with 2.5Al and environmentally friendly than ordinary mortar. Further, the experimental data obtained have suggested that the compressive and the flexural tensile strength have been significantly reduced by 90 % in the mortar samples incorporating 10% Al after being exposed to the high temperature of 600 °C. Moreover, the mechanical strength of that mortar has been quite high at the age of 28 days at elevated temperatures in comparison with that measured at 20 °C. The strength of the mortar with Al can be sufficient for some applications where a lightweight, low-strength mortar is required. The use of Al in the production of low-strength concrete can contribute to more sustainable construction.

Citation

Nadia TEBBAL , , (2023-06-01), Effect of Aluminum Waste on Mortar Thermo-Mechanical Behavior,, International Review of Civil Engineering (IRECE), Vol:14, Issue:5, pages:415-424, International Review of Civil Engineering (IRECE)

In recent years, due to the modern lifestyle, industrial and technological progress has led to a significant increase in the quantity and quality of waste. Waste accumulation problem every year is all over the world. The use of materials from waste in buildings compensates for the lack of natural resources, solves the problem of waste management and provides an alternative technique for protection of the environment. In Algeria, the Ministry of Environment demonstrated that the recycling market is estimated at 23 billion Algerian dinars (about 260 million USD). In this vision, policy makers aspire to establish a real industry for recovery and recycling of waste through the development of several sectors such as plastics, aluminum paper and cardboard, metals, glass, wood, etc. This review assesses Aluminum waste (Al) in concrete as a substitute for aggregates and cement. The physical, mechanical and environmental properties of the materials obtained by substitution of raw materials by Al waste were examined and compared to reference materials. Mining waste in cementitious materials offers good compressive strengths, while the porosity of the concrete and/or mortar is a factor influencing its toxicity

Citation

Nadia TEBBAL , ,(2023-01-27), RECOVERY OF ALUMINUM WASTES IN BUILDING MATERIALS: A REVIEW,V. INTERNATIONAL ANKARA MULTIDISCIPLINARY STUDIES CONGRESS ,27-29 January 2023, Ankara, Türkiye.,Ankara, Türkiye.

Abstract: In recent years, due to the modern lifestyle, industrial and technological progress has led to a significant increase in the quantity and quality of waste. Waste accumulation problem every year is all over the world. The use of materials from waste in buildings compensates for the lack of natural resources, solves the problem of waste management and provides an alternative technique for protection of the environment. In Algeria, the Ministry of Environment demonstrated that the recycling market is estimated at 23 billion Algerian dinars (about 260 million USD). In this vision, policy makers aspire to establish a real industry for recovery and recycling of waste through the development of several sectors such as plastics, aluminum paper and cardboard, metals, glass, wood, etc. This review assesses Aluminum waste (Al) in concrete as a substitute for aggregates and cement. The physical, mechanical and environmental properties of the materials obtained by substitution of raw materials by Al waste were examined and compared to reference materials. Mining waste in cementitious materials offers good compressive strengths, while the porosity of the concrete and/or mortar is a factor influencing its toxicity.

Citation

Nadia TEBBAL , ,(2023-01-27), ECO-MORTARS PROPERTIES FORMULATED BY POLYSTYRENE AND MIXED SAND,V. INTERNATIONAL ANKARA MULTIDISCIPLINARY STUDIES CONGRESS ,27-29 January 2023, Ankara, Türkiye.,Ankara, Türkiye.

The combined use of silica fume (SF) and ceramic waste (CW) for the production of mortar is studied. Sand isreplaced by 5%, 10%, 15% and 20% of CW while a fixed 5% percentage (% wt of cement) of SF is used. The resultsshow that the best results are obtained by using silica fume and ceramic waste sand with 15% weight of sand and5% wt of cement. With the addition of sand ceramic waste (SCW), the mortar compressive strength and densityincrease, while the porosity displays an opposite trend. The experimental analysis is complemented with theore-tical considerations on the matrix strength and related improvements in mechanical behavior. It is shown that theagreement between the experimental values and the estimated values is good.KEYWORDSMortar; silica fume; ceramic waste; full factorial arrangement; mechanical properties1 IntroductionThe big topic of importance today in cement and concrete technology is the recycling and reuse ofindustrial waste and by-products, like ceramic and brick wastes [1]. Some recent studies have proven thatthe use of the remnants of inorganic industrial produces in the production of concrete can makesustainable ceramics industry range from 3% to 7% of daily production [2]. Therefore, recycling it allowsit to be used in the construction of many different buildings [3]. After recycling this waste, it wasconsidered to be coarser than the cement particles, which is usually as fine and coarse aggregate in theconcrete mixture, up to 35% of tile waste [4].According to research by Kannan et al. (2017), replacing part of the cement with micro-ceramic powderled to the good improvement of the outstanding mechanical properties of high-performance concrete [5].MCP has been classified as a material rich in aluminum silicate which indicates significant activity ofpozzolanic [5]. The (C-S-H) and (C-AS-H), as the two major strength transfer phases in Portland cement(PC), formed as a result of the consumption of Ca(OH)2 by the reaction of aluminosilicates insideceramic waste [6].Cement consumes a large proportion of carbon dioxide is emitted into the atmosphere during itsproduction, which causes many environmental problems [7]. The silica fume (SF) is one of thecementitious additions (SCMs) used due to its improvement concrete/mortar properties [8].This work is licensed under a Creative Commons Attribution 4.0 International License, whichpermits unrestricted use, distribution, and reproduction in any medium, provided the originalwork is properly cited.DOI: 10.32604/fdmp.2022.021970ARTICLEechT PressScience

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Nadia TEBBAL , , (2023-01-01), On the Combination of Silica Fume and Ceramic Waste for the Sustainable Production of Mortar., FDMP-Fluid Dynamics & Materials Processing, Vol:19, Issue:5, pages:1083-1090, FDMP

geopolymer paste by alkaline solution (alkali + water glass) were investigated. (e e4ect of the combination of GP and BW on the porosity and absorption of the prepared geopolymer paste was monitored and evaluated by both laboratory and analytical methods. In this paper, three mortars were made with two sources of geopolymer containing 100% BW and 100% GP and blended with 90% GP and 10% BW replacements by mass. (e compressive strength, porosity, and absorption of alkali-activated mortar were concurrently examined. Furthermore, the laboratory results obtained were estimated by the general full factorial design method. Finally, the analysis of variance was performed using the test results to analyze the importance of the e4ect factors and their interactions on the selected responses. (e results concluded that mortar activated combined with 10% BW and 90% GP could be utilized in the industry of construction with minimum pollution problems and environment-friendly building materials, with the e4ect variables signi:cantly a4ecting the responses.

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Mekki MAZA , Nadia TEBBAL , Zine El Abidine.Rahmouni@univ-msila.dz, , (2022-12-12), Use of a Full Factorial Design to Study the Relationship between Water Absorption and Porosity of GP and BW Mortar Activated, Advances in Civil Engineering, Vol:2022, Issue:2022, pages:1-10, Hindawi

The combined use of silica fume (SF) and ceramic waste (CW) for the production of mortar is studied. Sand is replaced by 5%, 10%, 15% and 20% of CW while a fixed 5% percentage (% wt of cement) of SF is used. The results show that the best results are obtained by using silica fume and ceramic waste sand with 15% weight of sand and 5% wt of cement. With the addition of sand ceramic waste (SCW), the mortar compressive strength and density increase, while the porosity displays an opposite trend. The experimental analysis is complemented with theoretical considerations on the matrix strength and related improvements in mechanical behavior. It is shown that the agreement between the experimental values and the estimated values is good.

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ZINE EL ABIDINE Rahmouni , Mekki MAZA , Nadia TEBBAL , Messaouda BELOUADAH , , (2022-06-14), On the Combination of Silica Fume and Ceramic Waste for the Sustainable Production of Mortar,, Fluid Dynamics & Materials Processing 2023, 19(5),, Vol:19, Issue:5, pages:1083-1090, Tech Science Press

This paper presents an experimental study on the influence of metal fibers on the mechanical behaviour of mortar with glass sand. Four mortar mixtures with glass filler and metals fibers are manufactured. The specimens were prepared with three percentages of glass sand (0%, 5%, 10%) and 1%, 2% by vol of steel fibers. The Air-Entraining Agent (A-E-A) dosages at the ratios of 0.08% of cement weight were used. The mechanical tests were carried out on the specimens such as the compressive strength, the tensile strength and the porosity. The results showed that the tensile and bending properties of all different mixtures with fibers are significantly higher compared to the reference mortars. A remarkable decrease has been observed in water, density and compressive strength of mortar with chemical admixture. Moreover, the using 1% volume fraction of steel fibers and 10% glass sand, flexural strength of mortar was completely improved.

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ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , Mekki MAZA , Salim ZITOUNI , , (2022-04-08), Combined impact of replacing dune sand with glass sand and metal fibers on mortar properties, Revue des Composites et des Matériaux Avancés-Journal of Composite and Advanced Materials, Vol:32, Issue:2, pages:85-90, IIETA

High performance concrete (HPC) has several advantages in building construction that cannot be achieved using conventional concrete in terms of strength durability, resistance to chemical attack, and workability of high performance concrete are high. The introduction of fillers and additives contributed to the improvement of high-performance concrete (HPC), other parameters also influence the performance of these HPCs, coarse aggregate fraction is known to strongly influence both fresh and hardened concrete’s properties. Consequently, selection of both content and particle size distribution for (HPC) mixture is an important issue regarding the predicted performance of concrete. For to make concrete more improvement , the porosity of the granular skeleton as well as the rheology of our HPC, 3/8 fraction of rolled gravel with smooth and rounded surfaces was introduced, in substitution for the crushed gravel of the same fraction , by testing various combinations of fractions 3/8 of rolled gravel and fraction 8/15 of crushed gravel in the present study, and based on previous results obtained the combinations 35,40 and 45% fraction 3/8 of rolled gravel and 65 , 60 and 55% fraction 8/15 of crushed gravel (binary granular system) respectively, gives a minimal porosity . Super plasticizer and four percentages of pozzolan were experimented. Compressive strength function of coarse aggregate was determined at 7, 14 and 28 days. Results have revealed that the mixtures with modified granule size distribution system ,1.5% of superplasticizer and 5% by weight of pozzolan allow an improvement in the compressive strength of 35.1% relative to the control concrete.

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ZINE EL ABIDINE Rahmouni , Salim ZITOUNI , Mekki MAZA , Nadia TEBBAL , , (2022-02-21), Impact of Rolled and Crushed Aggregate with Natural Pozzolan on the Behavior of HPC, Annales de chimie - Sciences des matériaux, Vol:46, Issue:1, pages:45-52, IIETA

A review of a sustainable mortar with partial alternatives to ceramic and brick as a cementitious material

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ZINE EL ABIDINE Rahmouni , Messaouda BELOUADAH , Nadia TEBBAL , ,(2022), A review of a sustainable mortar with partial alternatives to ceramic and brick as a cementitious material,International Conference on Sustainable Cities and Urban Landscapes (ICSULA 2022),Konya-Turkey / Selcuk University

Recycling and recovery of waste are now considered as a solution for the future to protect the environment. The marble processing workshops on the other hand, generate a large amount of waste in the form of powder and small parts. Due to these facts, the aim of this study is to valorize marble waste in the form of powder and crushed aggregates (sand) as additions in cementitious matrix building materials. The characterization of the materials used to formulate mortars based on natural dune sand with marble powder and mortars based on mixed sand (dunes sand and crushed sand) and marble powder was measure. In this sense, several series have been studied, varying the addition rate of the marble powder in order to reduce the porosity of the cement matrix, using crushed marble sand to increase the granular cohesion and using of a reducing water admixture (MEDAPLAST SP40) for more performance mortars. Very appreciable results were observed for a dosage of 15% of marble powder and for the combination of 15% of marble powder with 20% of crushed marble sand. This research recommends recycling 35% of marble waste in the cement matrix that contribute effectively to the preservation of the environment.

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Mekki MAZA , Salim ZITOUNI , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , , (2021-12-26), Combined Effect of Marble Waste as Powder and Aggregate Form on the Proprieties of the Mortar, Annales de Chimie - Science des Matériaux, Vol:45, Issue:6, pages:467-476, Annales de Chimie

As part of protecting the environment from carbon dioxide emissions, all research aims to reduce the use of cement in concrete with cheaper and energy efficient materials. Geopolymer mortar is an environmentally friendly mortar made from industrial solid waste and by-products such as crystalline slag (CS). This research aims to produce a geopolymer mortar from local materials available in Algeria which are not sufficiently valued at present. The aim of this study is to provide geopolymer mortar at high temperatures, operating with a constant hardening temperature of around 60° C. The alkaline activator used in this study was a combination of sodium silicate (Na2SiO3) and 10 M NaOH solution. In addition, crystalline geopolymer mortars (MCS) as the binder material at a curing temperature of 60 °C, ratios of two mixtures of binder were prepared by substituting the sand with 40% CS and 100% CS. For this purpose, the mortar sample with the highest compressive strength was subjected to temperatures of 200, 400, 600 and 800 °C for exposure times of 10 °C per minute and changes in temperature and changes in the physical and mechanical properties was analyzed. As a result of the experiments, the highest mechanicals values were obtained from the mortar samples with a 40% CS content. Following the high temperature tests, 400 °C and 600 °C were determined as critical temperatures for changes in mechanical properties and changes in physical properties, respectively. However, the geopolymer mortars lost around 60% of strength at 800 °C which is the final temperature.

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Mekki MAZA , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , , (2021-09-02), Combined effect of high temperatures and crystalline slag on the mechanical behavior of geopolymers mortars, . Materials Today: Proceedings, Vol:49, Issue:4, pages:1051-1055, sciencedirect

Abstract: Recently a full factorial design is an experiment allows the investigator to study the effect of each factor on the response variable, as well as the effects of interactions between factors on the response variable. The objective of this study is to identify the significant factors and interactions involved in maximizing compressive strength of geopolymer mortar when brick waste activated is used as cement. In this respect, experimental factors at two levels, which are alkaline activator type (Na2SiO3+ NaOH), curing temperature (40°C - 60°C) and cure duration (7-28 days), are selected as possible applicants affecting the compressive strength.According to the full factorial analysis, at the 60 °C curing temperature level when brick waste activated is added to mortar, the compressive strength will be good enough after 28 days. The physic - mechanical analysis shows an excellent agreement between the measured and the estimated values for both the compressive strength and only slight deviations were noticed for high curing temperature. The use of appropriate values of matrix strength and consideration of the improvement in mechanical behavior allow a good agreement between the experimental values and the estimated values .The results demonstrate that brick waste after activation can be used in construction industry. Keywords: Brick waste, Experimental design, Geopolymer mortar, Curing temperature

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ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , , (2019), Recycling of Brick Waste for Geopolymer Mortar Using Full Factorial Design Approach, The Eurasia Proceedings of Science, Technology, Engineering & Mathematics (EPSTEM), Vol:7, Issue:, pages:44-47, ISRES Publishing: www.isres.org

In this study, compressive strength values were measured at different curing times (7, 14 and 28 days). The alkali-activation of the brick and glass powder body with potassium water glass having the silicate modulus of 3.0. The 28-days compressive strengths, flexural strength and specific fracture energy of the specimens stored at 40 and 60 °C are evaluated. The storage temperature of specimens and the content of the alkaline solution have a significant influence on all mechanical properties of the studied materials.

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ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2019), Effect of Curing Temperature in the Alkali-Activated Brick Waste and Glass Powder mortar and Their Influence on Mechanical resistances,RICON19 - Remine International Conference,,University of Beira Interior, Covilhã, Portugal.

A large amount of natural aggregates such as sand and fillers are being consumed in mortar production. At the same time production of solid waste from the demolitions and manufacturing units are also very high. The objective of this study is to identify the significant factors and interactions involved in behavior of mortar with partial replacement of waste ceramic used as alternative sand aggregate and it is compared with controlled mortar. In this respect, experimental factors at two levels, which are sand, are replaced by waste ceramic for various percentages 5%, 10%, 15% , cure duration (7-28 days) and the strength is controlled. According to the full factorial analysis, at the 15% percentage level when waste is added to mortar with sand, the compressive strength will be good enough after 28 days. The results demonstrate that ceramic waste can be used in construction and prove cost effective technique concreting for the future. The physic - mechanical analysis shows an excellent agreement between the measured and the estimated values for both the compressive strength and the porosity and only slight deviations were noticed for high percentage of ceramic content. The use of appropriate values of matrix strength and consideration of the improvement in mechanical behavior allow a good agreement between the experimental values and the estimated values. The results demonstrate that ceramic waste after substitution in the mortar can be used in construction industry and prove cost effective technique concreting for the future.

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ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , Kaddour Imene, Habeta Fouzia, ,(2019), Study of the effects of ceramic waste in the mortar by the Full factorial design approach.,International Conference on Computational Methods in Applied Sciences (IC2MAS19),Gelisim University, Istanbul,Turkey.

This study examines the effect‘s additions of aluminum (AL) on the mechanical performance of mortars subjected to cycles of freeze-thaw. The research evaluated the density, compressive strengths and workability properties of mortar mixtures to which aluminum byproduct was added in different proportions (0%, 5% and 7.5 %,) by weight of cement. The effects of fast freeze-thaw cycles on the mechanical properties of aluminum waste mortar materials (MC, M5 and M7.5) are investigated on the basis of the experimental results. The test results indicate a considerable decrease in workability, mechanical resistance density of plain mortar with the addition of AL. The results also show that the strength of mortar with AL can be sufficient for certain applications, where light and low-strength mortar is required. Overall, the results of this study demonstrate the viability of using AL in the production of low strength concrete, where such usage can help toward a more sustainable construction.

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Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , , (2019), Valorization of aluminum waste on the Mechanical Performance of mortar subjected to cycles of freeze-thaw, Procedia Computer Science, Vol:158, Issue:, pages:1114-1121, Elsevier B.V.

The development of new building materials is the problem of time, where researchers trying to find inexpensive equipment adapted in line with the field of use, the use of additional materials in the cement industry continues to increase and is often called on these metal additions materials we get from natural sources or remnants of industrial materials. In addition, the use leads to a reduction of clinker consumption and contribute to solving environmental problems in a simple and economical manner. The main objective of this experimental work is to study the proportion of powdered glass and marble dust on the physical and mechanical behavior of the composite cement and mortar. The obtained results the results obtained show that the partial compensation of glass cement powder 10% give the best values.

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Messaouda BELOUADAH , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , , (2019), Influence of the addition of glass powder and marble powder on the physical and mechanical behavior of composite cement, Procedia Computer Science, Vol:158, Issue:1, pages:366-375, Elsevier B.V.

يقاس تقدم أي أمة بمدي تطورها في مختلف مجالات الحياة من الرعاية الصحية، البنية التحتية، الحريات الخاصة والتعليم. وبسبب هذا التطور التقني الهائل وما صاحبه من انفجار للمعرفة أصبحت المعلومات المتوفرة لدينا تتضاعف يوميا ان لم نقل في كل ساعة . هذه التغيرات مست النواحي التعليمية بشكل كبير مقارنة بالنواحي الأخرى من الحياة كالأنظمة التعليمية التقليدية، والتي أصبحت تواجه مشاكل كثيرة فيما يتعلق بحاجتها إلى توفير فرص تعليمية أوسع نتيجة التزايد الكبير في أعداد الطلاب المتمدرسين وما رافقه من زيادة في الاعباء المالية لبعض من الدول التي لم تتمكن من تحملها ، هذا بالإضافة إلى النقص الملحوظ في التأهيل الممنهج للمعلمين والاساتذة ، وغيرها من القضايا التي أصبحت تمثل تحديات كبيرة للمؤسسات التعليمية. وتعتبر الجزائر من بين الدول التي تواجه مؤسساتها التعليمية هذا التحدي من خلال النظر الفعلي في إمكانية تطوير برامجها التعليمية الإلكترونية منها والتعليم عن بعد والذي يعتمد بشكل على استخدام تكنولوجيا الصوت والصورة، المعلومات، والمواد المطبوعة. وقد أثبتت الدراسات والأبحاث أن الحل الأول هو تصميم مناهج علمية تحقق الهدف الأساسي من العملية التعليمية، وهو تمكين المتعلم من توسيع مداركه ومعارفه ليتعرف على العالم المحيط ويحسن التعامل مع معطياته، ومن ثم فإن عملية تصميم المنهج التعليمى وبناؤه له خطوات علمية والذي يطلق عليه بالتصميم التعليمي الحديث, ولهذا كان من الواجب علينا ان نتطرق في بحثنا هذا للتعريف بالتصميم التعليمي واهدافه ، والطرق العلمية للوصول اليه بأساليب حديثة تضمن وبشكل كبير في تقديم محتوى تعليمي يساعد على استمرارية اهتمام الطلاب وإثارة دافعيتهم لمواصلة التعليم وعلى العكس من ذلك فان التصميم الغير جيد قد يتسبب بتسرب عدد كبير من الطلاب وبالتالي يؤثر على مخرجات تعلم الطلاب. ولأهمية التصميم التعليمي في تطوير البرامج والنظم التربوية التي تساهم في تطوير وتقدم الامم تطرقنا في مقالنا هذا الي التساؤل حول مفهوم التصميم التعليمي , اهدافه وانماطه وكذا الخطوات الازمة للتصميم التعليمي مع البرمجيات الحديثة.

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Nadjet Saker , Nadia TEBBAL , ,(2019), التصميم التعليمي بين النظم والتقييم,الملتقى الوطني الرابع حول: "استعمال تكنولوجيات الاعلام والاتصال في التطبيقات البيداغوجية",M'sila

This study aims to valorize mineral residues as an addition to cementitious matrix building materials. It is part of a sustainable development approach. The use of recovered and recyclable industrial residues as a partial replacement of Portland cement in concrete reduces greenhouse gas emissions and results in the manufacture of concrete with less environmental impact. The use of crushed glass powder to replace clinker presents a promising way to recover and recycle waste. By taking advantage of different experimental techniques, particular attention is given to the behavior of the finely ground glass powder associated with Portland cement. Cement replacement by glass powder in the range 5% to 10%. This approach is based on the material properties and its effect on the properties of hardened concrete strength porosity, several parameters are considered, namely: The effect of filler, the effect of adjuvant and W/C, porosity, leading to the production of concrete local materials characterized by good strength, porosity and minimum acceptable durability.

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Messaouda BELOUADAH , ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , ,(2019), Study Of The Effect Of Mineral Additions In The Development Of Mechanical Properties And The Improvement Of The Rheological Behavior Of Concrete,5th International Conference On Advances In Mechanical Engineering,Istanbul, Turquie

Recently a full factorial design is an experiment allows the investigator to study the effect of each factor on the response variable, as well as the effects of interactions between factors on the response variable. The objective of this study is to identify the significant factors and interactions involved in maximizing compressive strength of geopolymer mortar when brick waste activated is used as cement. In this respect, experimental factors at two levels, which are alkaline activator type (Na2SiO3+ NaOH), curing temperature (40°C - 60°C) and cure duration (7-28 days), are selected as possible applicants affecting the compressive strength.

Citation

Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , ,(2019), RECYCLING OF BRICK WASTE FOR GEOPOLYMER MORTAR USING FULL FACTORIAL DESIGN APPROACH,International Conference on Technology, Engineering and Science (IConTES2019),Antalya, Turkey.

This paper presents an experimental investigation on the performance of concrete with and without glass powder (GP) subjected to elevated temperatures. Mechanical and physicochemical properties of concretes were studied at both ambient and high temperatures. One of the major environmental concerns is disposal or recycling of the waste materials. However, a high volume of the industrial production has generated a considerable amount of waste materials which have a number of adverse impacts on the environment. Further, use of glass or by-products in concrete production has advantages for improving some or all of the concrete properties. The economic incentives and environmental benefits in terms of reduced carbon footprint are also the reason for using wastes in concrete. The occurrence of spalling, compressive strength, mass loss, chemical composition, crystalline phase, and thermal analysis of CPG before and after exposure to various temperatures (20, 200, 400, and 600oC) were comprehensively investigated. The results indicated that, the critical temperature range of CPG was between 400oC and 600oC.

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ZINE EL ABIDINE Rahmouni , Nadia TEBBAL , messaouda.belouadah@univ, , (2018), Effects of glass powder on the characteristics of concrete subjected to high temperatures, Advances in Concrete Construction, Vol:6, Issue:3, pages:311-322, Techno Press

The objective of this study is to analyze the effect of the air entrainment on the fresh rheological properties as well as on the compressive mechanical resistances of the mortars. The hardened concrete contains a certain amount of randomly spread air, coming either from a drive during kneading or from the evaporation of the mixing water. The air quantity is in the order of 20 l / m3, ie 2% of the volume. However, the presence of a large volume of air bubbles causes the mechanical resistances to fall in compression. On the other hand, the use of air entrainment could improve the rheological properties of fresh concrete. Experimental studies have been carried out to study the effect of air entrainment on compressive strength, density and ingredients of fresh concrete mix. During all the study, water cement ratio (w/c) was maintained constant at 0.5. The results have shown substantial decreasing in water and mortar density followed with decreasing in compressive strength of mortar. The results of this study has given more promising to use it as a guide for mortar mix design to choose the most appropriate concrete mix design economically.

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Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , Chadi Lamis Rabia, , (2018), Study of the Influence of an Air- Entraining Agent on the Rheology of Mortars, MATEC Web of Conferences, Vol:149, Issue:1054, pages:544-570, EDP Sciences

This study examines the effect of the additions of silica fume and super plasticizer on the mechanical performance of high performance concretes at high temperatures. The tested concretes are formulated with 5% silica fume and two dosages of super plasticizers in the ratio of (2%, 2.5%) the weight of cement after having been exposed to four maximum temperatures, 200 °C, 400 °C, 600 °C and 900 °C without any imposed load during the heating. The results obtained show that the mechanical resistance at 28 day increases with the degree of temperature compared to that measured at 20 °C. On the contrary, a clear decrease is observed between 600 °C and 900 °C. However, material composition seems to have great influence on the mechanical strength.

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Mekki MAZA , Nadia TEBBAL , ZINE EL ABIDINE Rahmouni , , (2017-09-08), 4) COMBINED EFFECT OF SILICA FUME AND ADDITIVE ON THE BEHAVIOR OF HIGH PERFORMANCE CONCRETES SUBJECTED TO HIGH TEMPERATURES,, Mining Science, Vol:24, Issue:, pages:129-145, mining Science