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J. Korean Ceram. Soc. > Volume 43(9); 2006 > Article
Journal of the Korean Ceramic Society 2006;43(9): 537.
doi: https://doi.org/10.4191/kcers.2006.43.9.537
석회석 미분말이 염소고함유시멘트의 수화반응에 미치는 영향
정찬일, 이의학, 이경희
명지대학교 무기재료공학과
Influence of Limestone Powder on the Hydration of Cement Contained much Chloride
Chan-Il Jeong, Eui-Hak Lee, Kyung-Hee Lee
Department of Inorganic Materials Engineering, Myong-Ji University
Length change, hydration heat, setting time and compressive strength of OPC were measured by adding KCl and replacing limestone powder so as to examine the influence of limestone powder on hydration of the OPC contained much chloride. In general, the chloride modified cement was high in heat of hydration, short in its setting time, low in its fluidity and low in its strength at 28 days due to the sudden hydration in its initial stage. As a result of the experiment, it has been demonstrated that heat of hydration, became low as one replaced limestone powder to the chloride modified cement, and the fluidity and shrinkage rate of mortar decreased without change in setting time; furthermore, the compressive strength at 28 days was improved.
Key words: KCl, Limestone powder, Fluidity, Mortar shringkage, Compressive strength
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