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دراسة مقارنة تأثير كبريتات المغنيسيوم علي خرسانة الجيوبولير وخرسانة الاسمنت البورتلاندي

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dc.contributor.advisorد.زيدان علي محمد حتوش
dc.date.accessioned2026-06-07T11:07:34Z
dc.date.available2026-06-07T11:07:34Z
dc.descriptionThe economy and stability of any type of structure are the main requirements. The best designer is the one who can come up with a design that will give a stable and economical structure. As known, Portland Cement Concrete is perhaps the most widely used building material in the world. Based on the advantages, there are some disadvantages related to climate change due to global warming which is one of the biggest social, political, economic and environmental problems. As known, the production of Portland cement significantly contributes to carbon dioxide emissions. Where 5-10% of global man-made carbon dioxide emissions originate from the cement industry. Interest in global warming has led the cement industry to look for environmentally friendly processes that will be an alternative to cement concrete. Geopolymers are cements that produce the least amount of carbon dioxide emissions and are alternatives to Portland cement. Geopolymers reduce the energy requirements used in the production of Portland Cement by 40%. Geopolymers are binders obtained by activating industrial wastes such as (iron slag, fly ash and glass waste) that have pozzolanic properties with alkalis such as sodium silicate and sodium hydroxide solution. Geopolymers are active substances that Show advanced mechanical properties when compared with Portland cement. Numerous studies have shown its effectiveness to resist high pressure and also can improve the performance of concrete in cases of : acid resistance, low shrinkage, fire resistance, etc . This study evaluated the performance of Portland Cement Concrete and compared it to Geopolymer Concrete based on a binary mixture of blast furnace slag with glass powder and activated with a mixture of sodium silicate and sodium hydroxide. Geopolymer Concrete (GPC) and Portland cement concrete (OPC) were immersed in a solution of magnesium sulfate (MgSO4) at a concentration of 20%. The compressive stress tests of the two concretes were carried out one month and 3 months after immersion in MgSO4. The highest levels of deterioration were found in cement concrete samples, which indicates a higher aggressiveness when exposed to a solution (MgSO4). The results showed a decrease in the severity of deterioration when using fine glass in cement concrete instead of fine aggregates (sand) and an increase in pressure resistance to a double. While the Geopolymer-based concrete (80% slag and 20% Glass) showed resistance and high performance against magnesium sulfate and did not show any form of deterioration or corrosion
dc.description.abstractThe economy and stability of any type of structure are the main requirements. The best designer is the one who can come up with a design that will give a stable and economical structure. As known, Portland Cement Concrete is perhaps the most widely used building material in the world. Based on the advantages, there are some disadvantages related to climate change due to global warming which is one of the biggest social, political, economic and environmental problems. As known, the production of Portland cement significantly contributes to carbon dioxide emissions. Where 5-10% of global man-made carbon dioxide emissions originate from the cement industry. Interest in global warming has led the cement industry to look for environmentally friendly processes that will be an alternative to cement concrete. Geopolymers are cements that produce the least amount of carbon dioxide emissions and are alternatives to Portland cement. Geopolymers reduce the energy requirements used in the production of Portland Cement by 40%. Geopolymers are binders obtained by activating industrial wastes such as (iron slag, fly ash and glass waste) that have pozzolanic properties with alkalis such as sodium silicate and sodium hydroxide solution. Geopolymers are active substances that Show advanced mechanical properties when compared with Portland cement. Numerous studies have shown its effectiveness to resist high pressure and also can improve the performance of concrete in cases of : acid resistance, low shrinkage, fire resistance, etc . This study evaluated the performance of Portland Cement Concrete and compared it to Geopolymer Concrete based on a binary mixture of blast furnace slag with glass powder and activated with a mixture of sodium silicate and sodium hydroxide. Geopolymer Concrete (GPC) and Portland cement concrete (OPC) were immersed in a solution of magnesium sulfate (MgSO4) at a concentration of 20%. The compressive stress tests of the two concretes were carried out one month and 3 months after immersion in MgSO4. The highest levels of deterioration were found in cement concrete samples, which indicates a higher aggressiveness when exposed to a solution (MgSO4). The results showed a decrease in the severity of deterioration when using fine glass in cement concrete instead of fine aggregates (sand) and an increase in pressure resistance to a double. While the Geopolymer-based concrete (80% slag and 20% Glass) showed resistance and high performance against magnesium sulfate and did not show any form of deterioration or corrosion
dc.identifier1-29
dc.identifier.urihttps://dspace.academy.edu.ly/handle/123456789/2181
dc.subjectهندسة مدنية
dc.titleدراسة مقارنة تأثير كبريتات المغنيسيوم علي خرسانة الجيوبولير وخرسانة الاسمنت البورتلاندي
dspace.entity.typeProject
project.endDate2025
project.funder.nameالتطبيقية والهندسية
project.investigatorمحمد عبدالسلام النكاعة
project.startDate2024
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