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J. Korean Ceram. Soc. > Volume 25(3); 1988 > Article
Journal of the Korean Ceramic Society 1988;25(3): 207.
$C_3S$의 生成反應 및 特性에 미치는 黃酸鹽의 影響
김병권, 최상흘1, 한기성
인하대학교 무기재료공학과
1한양대학교 무기재료공학과
Effect of Sulphate on the Formation of $C_3S$ and Its Properties
Effect of $SO_3$ on the formation of $C_3S$ and its properties were investigated through studies for diffusion of reacting component, the size variation of $C_3S$ and compositional change of the phases in the clinker. When less than 2.0% of $SO_3$ was added to the clinker composition, the formation of $C_3S$ was enhanced, however, addition of more than 2.0% of $SO_3$ rather restrained the reaction remarkably. The diffusion coefficient of Si into the melt was about $3.6~4.2{times}10^{-7}Cm^2$/sec and it was slightly decreased with the amount of $SO_3$. The crystal size of $C_3S$ formed in the clinker was grown gradually according to the amount of $SO_3$, when more than 1.0% of $SO_3$ was added. With increasing of $SO_3$ content in the clinker composition of CaO and decreasing of $SiO_2$ were found in the melt of the clinker. Consequently, it is considered that the decreasing of $C_3S$ formation is caused by dissolution and transportation of CaO component into liquid phase is interrupted.
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