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NaOH alkali-activated class F fly ash: NaOH molarity,Curing conditions and mass ratio effect
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نویسنده
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bakkali h. ,ammari m. ,frar i.
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منبع
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journal of materials and environmental science - 2016 - دوره : 7 - شماره : 2 - صفحه:397 -401
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چکیده
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Alkali-activated fly ash has been prepared by mixing moroccan fly ash (astm class f) and sodium hydroxide (purity,97%). the samples were cured at two different curing conditions (80 and 100°c) for 4 days in different experimental conditions. xrd analysis and laser granulometry were used to characterize fly ash. microstructure of paste and and their compressive strength were investigated. the results reveled that compressive strength of geopolymers depends on naoh concentration,curing conditions,and also fly ash to sodium hydroxide mass ratio. compressive strength of 30 mpa was obtained when the mixture was prepared with 14m naoh,fly ash to sodium hydroxide ratio of 1.4,and cured at 80°c.
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کلیدواژه
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Alkaline activations; Class F fly ash; Compressive strength; Geopolymers
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آدرس
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laboratory of materials and resource valorization,faculty of sciences and techniques of tangier,university abdelmalek essaadi,bp 416,tangier, Morocco, laboratory of materials and resource valorization,faculty of sciences and techniques of tangier,university abdelmalek essaadi,bp 416,tangier, Morocco, laboratory of materials and resource valorization,faculty of sciences and techniques of tangier,university abdelmalek essaadi,bp 416,tangier, Morocco
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Authors
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