Effect of Sodium Tripolyphosphate and Silica Fume on Hydration of High Alumina Cement

期刊论文
发表日期：

2024年9月23日

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Jingran Wang,
Zongyuan Yang,
Shuai Zhang,
Jinhua Zhang,
Bingqiang Han,
Changming Ke

摘要

It was found that silica fume can reduce the maximum hydration heat release rate of cement by microcalorimetry, inhibit CAH₁₀, promote the generation of C₃AH₆ and strätlingite C₂ASH₈, or promote the conversion of CAH₁₀ to C₃AH₆. Sodium tripolyphosphate can retard the early hydration of cement, have a slight effect on 1 d hydration products of cement and inhibit the generation hydration products. Sodium tripolyphosphate and silica fume can promote the early hydration of cement, advance the formation of C₂ASH₈ or the conversion from CAH₁₀ to C₃AH₆ at 1 d.