The Effect of Potassium Oxalate on Hydration of Cement with the Ternary System of <TEX>$C_2$</TEX>S-C<TEX>$_4$</TEX>A<TEX>$_3$</TEX>-CS

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J. Korean Ceram. Soc. > Volume 35(12); 1998 > Article

Journal of the Korean Ceramic Society 1998;35(12): 1241.

C$_2$S-C$_4$A$_3$-CS 3성분계 시멘트의 수화에 미치는 Potassium Oxalate 첨가의 영향

강승규, 최상홀¹

한라시멘트 기술연구소
¹한양대학교 공과대학 무기재료공학과

The Effect of Potassium Oxalate on Hydration of Cement with the Ternary System of $C_2$S-C$_4$A$_3$-CS

ABSTRACT

$beta$-C2S and C4A3 were synthesized separately and potassium oxalate was added to each system. The ad-ditive caused calcium ions in solution to decrease at early time in hydration and promoted hydration reac-tion. And then clinker which is mainly composed of $beta$-C2S and C4A3 was synthesized at 130$0^{circ}C$ After ad-ding potassium oxalate to it behavior of hydration was observed. It showed that the additive promoted et-tringtie formation at early time and C-S-H formation as time went on.

Key words: ${\beta}$-C$_2$S, C$_4$A$_3$, Potassium oxalate, Ettringite, C-S-H