Synthesis of <TEX>$Ca_2$</TEX>-based Clinker by Hydration-Burning Method: (III) Study on the Microstructural Changes during Clinker Burning

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J. Korean Ceram. Soc. > Volume 28(10); 1991 > Article

Journal of the Korean Ceramic Society 1991;28(10): 751.

수화-소성법에 의한 $Ca_2$ 클린커의 합성: (III) 클린커소성 중의 미구조 변화

송태웅, 한기성¹

경남대학교 무기재료공학과
¹인하대학교 무기재료공학과

Synthesis of $Ca_2$-based Clinker by Hydration-Burning Method: (III) Study on the Microstructural Changes during Clinker Burning

ABSTRACT

Continuous microstructural changes on heating of hardened paste prepared from primary clinker of CA2 composition was studied. On heating period, several characteristic shrinkages and microstructural changes took place in the specimen due to the dehydration and recrystallization of calcium aluminates without regard to the accelerative shrinkage resulted from sintering. Though micropores formed by dehydration decreased with recrystallization of calcium aluminates, micropores formed by plate-type gibbsite in the hydrates were maintained up to the temperature at which CA2 becomes main phase and had influence to the microstructure of the final clinker.