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J. Korean Ceram. Soc. > Volume 35(10); 1998 > Article
Journal of the Korean Ceramic Society 1998;35(10): 1030.
플라이 애쉬-석회계 수열반응에 있어서 석고 및 시멘트의 영향
안민선, 박태균, 황인수, 김병익
요업기술원 원료과
Effect of Gypsum and Cement on Hydrothermal Reaction in Fly Ash-Lime System
In fly ash-lime system the effects of reaction condition amounts of gypsum and cement and CaO/SiO2 ratio on the hydrates by hydrothermal reaction were investigated. The tobermorite phases were not observed in hy-drothermal reaction of fly ash lime because of the hydrate rate was very slow. The compressive strength and the hydration rate increased with increasing the amount of gypusm and cement and the optimum amounts of gypsumo and cement were 5wt and 20wt% respectively. The specimen which CaO/SiO2 ratio is 0.85 was shown the maximum compressive strength and the tobermorite phase within reaction time 2 hours.
Key words: Calcium silicate hydrate, Hydrothermal reaction, Tobermorite
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