NOUR ELHOUDA Benghalem
بن غالم نور الهدى
nourelhouda.benghalem@univ-msila.dz
0540931937
- CIVIL ENGINEERING
- Faculty of Technology
- Grade PHd
About Me
Science et Technologies
Filiere
Génie Civil
Materials
Location
Msila, Msila
Msila, ALGERIA
Code RFIDE- 1988-08-29 00:00:00
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NOUR ELHOUDA Benghalem birthday
- 2025-11-18
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2025-11-18
THE INFLUENCE OF CURING TEMPERATURE ON THE ALKALIACTIVATED MATERIAL ( LITTERATURE REVIEW)
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
Nour Elhouda BENGHALEM , ,(2025-11-18), THE INFLUENCE OF CURING TEMPERATURE ON THE ALKALIACTIVATED MATERIAL ( LITTERATURE REVIEW),1st National Seminar On Innovative Materials, Construction and Environment, NSIMCE-2025,,ENSET- Skikda. Algerie
- 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
- 2025-05-12
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2025-05-12
geoplymerisation mecanism and the influence of temperature literatture review
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
- 2025-04-22
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2025-04-22
influence of activation temperature on the geoplymerization mechanism ( review)
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
- 2024-10-30
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2024-10-30
The effect of geopolymerisation on evo friendly concrete
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 Keywords: Geolymer , Alkali-activation, Eco-friendly concret , Waste recycling, Temperature.
Citation
Nour Elhouda BENGHALEM , ,(2024-10-30), The effect of geopolymerisation on evo friendly concrete,Journée d’étude doctorale de génies civil et mécanique ( JEGCM24),Msila algerie
- 2024-07-19
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2024-07-19
Effect of using phosphat sludge in geopolymerization: a review
The phosphate industry faces serious environmental problems due to the waste generated after extracting the ores. The use of these wastes in the manufacture of environmental binders currently seems interesting for the building materials industry. Several studies have used phosphate sludge in the manufacture of geopolymers, phosphate sludge is a by-product of the phosphate mining industry. It is formed during the purification of phosphate extracted from mineral deposits, mainly contains phosphate and other minerals rich in calcium carbonate and silica. 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 According to the literature, phosphate sludge has been used with and without heat treatment, at various temperatures; it has been found that the calcination temperature plays an important role in the development of the workability and compressive strength of the system. Some studies have mixed uncalcined phosphate slurry with metakaolin, which is a pozzolanic material produced by the calcination of kaolinite typically between 600 and 900 degrees Celsius in a controlled environment, these studies have confirmed promising results for use as durable surfacing materials, which could substantially promote cleaner production in the construction sector and phosphate mines. In this work, we will explain some of the works that evaluate the use of phosphate residues in creating environmentally friendly materials Keywords: Geopolymer, Alkali-Activation, Phosphate sludge, Temperature.
Citation
Nour Elhouda BENGHALEM , ,(2024-07-19), Effect of using phosphat sludge in geopolymerization: a review,International conference on engineering naturel science and technological developments ( ICENSTED 2024),Erdek turkey
- 2024-07-17
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2024-07-17
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Citation
Nour Elhouda BENGHALEM , ,(2024-07-17), //,the summer school of linux and free software,setif
- 2023-09-26
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2023-09-26
Effect of temperature on geopolymerization
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. Keywords: geopolymer / Aluminosilicate/ alkali-activation/ hydration stage / temperature / .
Citation
Nour Elhouda BENGHALEM , ,(2023-09-26), Effect of temperature on geopolymerization,International conference on innovative studies (ICIAS23),Konya turkey
- 2023-07-10
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2023-07-10
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Citation
Nour Elhouda BENGHALEM , ,(2023-07-10), //,Conférence internationale sur les sciences appliquées et l’innovation ( CISAI 23),Sousse tunisie