HANANE Zadri
حنان زادري
hanane.zadri@univ-msila.dz
0669643283
- CIVIL ENGINEERING
- Faculty of Technology
- Grade PHd
About Me
Formation en entrepreneuriat. in Agence national d'appui et de developpement de l'entrepreneuriat
DomainScience et Technologies
Filiere
Génie Civil
Materials
Location
Msila, Msila
Msila, ALGERIA
Code RFIDE- 20-06-2001
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Formation en entrepreneuriat
Certaficat de formation en entrepreneuriat - 1998-07-06 00:00:00
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HANANE Zadri birthday
- 2025-12-09
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2025-12-09
Alkali-Activated Binders and Their Environmental Benefits: A Literature Review
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
- 2025-11-26
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2025-11-26
EFFECT OF ACTIVATOR CHEMISTRY ON THE STRENGTH DEVELOPMENT OF BLAST FURNANCE SLAG GEOPOLYMER SYSTEMS: REVIEW
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
- 2025-11-06
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2025-11-06
The influence of curing parameters on the alkali activated mortar
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
- 2025-07-06
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2025-07-06
EFFECT OF ACTIVATOR CHEMISTRY ON THE STRENGTH DEVELOPMENT OF GEOPOLYMER SYSTEMS: REVIEW
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
- 2025-06-01
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2025-06-01
Formation en entrepreneuriat
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Citation
Hanane ZADRI , ,(2025-06-01), Formation en entrepreneuriat,Agence national d'appui et de developpement de l'entrepreneuriat,université de bejaia, algeria
- 2025-05-13
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2025-05-13
The resistance of geopolymers to carbon dioxide and thier valorisation into a sustainable resource
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
- 2025-04-22
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2025-04-22
The Geopolymers: Activators and the Influence of Composition Parameters.
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
- 2024-10-31
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2024-10-31
Exploring alkali-activated aluminosilicate materials as sustainable alternatives: A view of activation processes depending on the calcium present in the system
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
- 2024-07-21
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2024-07-21
Development of geopolymer binders based on industrial waste with different treatment methods: A review
In recent years, scientific research into new construction materials has focused on the development of geopolymer cement based on industrial waste or by-products such as blast furnace slag, fly ash, rice husk ash, metakaolin, alkaline activators (NaOH /KOH and Na2SiO3). The aim of manufacturing geopolymer cement is to protect the environment from CO2 emissions, reduce the use of natural raw materials (clay and limestone) and create a new ecological and sustainable material. The synthesis of geopolymers depends on a number of parameters, including the type of raw materials used (chemical composition), the activator content and molarity, and the curing conditions. In this paper, we reviewed the importance of this topic and discussed a group of research such as: a recent study investigated the effect of variations in curing temperature and atmospheric exposure and humidity on the mechanical and microstructural properties of fly ash and steel slag mortars. Their results show that thermal curing at 50 °C and exposure to atmospheric air offer the best strength results for alkali-activated mortars. Nagajothi and Elavenil studied the effect of using ground granulated slag and fly ash to produce geopolymer cement, and their results indicated that a compressive strength of 42 MPa was observed within 40 hours of curing under ambient conditions. Rangan studied the durability and mechanical characterisation of geopolymer concrete with different variables such as alkaline activator concentration, curing method and temperature. Gopalakrishma and Pasla studied the effect of using different Fly-Ash-GGBS-MK materials as a binder in the manufacture of GPC mortars, their results indicated that the compressive strength of the materials varies with the percentage of these materials used in the composition. Finally, the use of alkali-activated binders with diffèrent mode can reduce carbon dioxide emissions by up to 80% compared with portland cement, making it a promising option for reducing environmental impact
Citation
Hanane ZADRI , ,(2024-07-21), Development of geopolymer binders based on industrial waste with different treatment methods: A review,n international conférence on Engineering, Natural Sciences, and Technological Developments,Erdek/Turkey
- 2023-10-18
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2023-10-18
Alkali-activation of aluminosilicate materials on geopolymerization
Alkaline activation of aluminosilicate materials is a fundamental step in the geopolymer manufacturing process. Alkaline activators are used to accelerate the dissolution of the aluminosilicate source and the formation of aluminosilicate gels (initiating the geopolymerization reaction). Commonly used alkaline activators are sodium or potassium hydroxide. Depending on the nature of the raw material used, amorphous substances (gels) may be formed. Several variables influence the alkaline activation process: the type and composition of the raw materials, the nature and concentration of the activator, the temperature and the curing time. When the aluminosilicate raw material comes into contact with the alkaline solution, an amorphous to semi-crystalline matrix (geopolymer) is formed through a chemical process known as geopolymerization. The transformation of a solid aluminosilicate source into a geopolymer matrix can be summarized in three steps: dissolution of the amorphous aluminosilicate source in the alkaline solution creates a supersaturated solution of SiO2 and Al2O3. This is followed by the formation of large networks by polycondensation and the increase of the gel network. The result is a three-dimensional geopolymer matrix with good mechanical strength, high resistance to chemical attack and resistance to high temperatures.
Citation
Hanane ZADRI , ,(2023-10-18), Alkali-activation of aluminosilicate materials on geopolymerization,The 1st Scientific Days on Materials and Their Applications (SDMA’2023) December 18-19-2023,BISKRA
- 2023-09-28
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2023-09-28
DIFFERENT TYPES OF ACTIVATION OF SUPPLEMENTARY CEMENTING MATERIALS
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
Hanane ZADRI , ZADRI HANANE, ,(2023-09-28), DIFFERENT TYPES OF ACTIVATION OF SUPPLEMENTARY CEMENTING MATERIALS,3eme international conférence on Innovative Studies,Konya/Turkey