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EFFECT OF CALCINATION TEMPERATURE OF THE KAOLIN AND MOLAR Na2O/SiO2 ACTIVATOR RATIO ON PHYSICAL AND MICROSTRUCTURAL PROPERTIES OF METAKAOLIN BASED GEOPOLYMERS
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نویسنده
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Soleimani M.A. ,Naghizadeh R. ,Mirhabibi A.R. ,Golestanifard F.
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منبع
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iranian journal of materials science and engineering - 2012 - دوره : 9 - شماره : 4 - صفحه:43 -51
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چکیده
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Metakaolinite-based geopolymer has been synthesized at about 25 °c from metakaolin which has been calcined in different temperatures (600-900 °c) and different na2o/sio2 ratio activator (0.3-1.1). compressive strength and microstructure of cement pastes after 7-28 days curing at ambient temperature were measured. compressive strength tests on the samples showed that the sample made with calcined kaolin at 700 °c and molar ratio of 0.6 has highest average compressive strength of 32 mpa after 28 days of curing. evaluation of infrared spectroscopy (ftir) and microstructure showed that geopolymer cement developed and new molecular structure established
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کلیدواژه
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Geopolymer ,Metakaolin ,Compressive strength ,Activator
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آدرس
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iran university of science and technology, School of Materials Science and Engineering, ایران, iran university of science and technology, School of Materials Science and Engineering, ایران, iran university of science and technology, School of Materials Science and Engineering, ایران, iran university of science and technology, School of Metallurgy and Materials Engineering, ایران
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Authors
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