Influence of rice husk ash on early hydration of calcium aluminate cement

被引：0
|
作者：
Xu L. [1 ]
Wu K. [1 ]
Wang P. [1 ]
Ludwig H. [2 ]
机构：
[1] Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai
[2] F.A. Finger Institue, Bauhaus University Weimar, Weimar
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2016年 / 44卷 / 08期
关键词：
Acceleration effect; Calcium aluminate cement; Hydration; Microstructure; Rice husk ash;
D O I：
10.14062/j.issn.0454-5648.2016.08.04
中图分类号：
学科分类号：
摘要：
The influence of rice husk ash (RHA, 20% and 40%, mass fraction) on the early hydration (hydration heat, hydration degree) of calcium aluminate cement was investigated by calorimetry, differential thermal-thermogravimetry and scanning electron microscopy, respectively. The results indicate that compared to other samples, the substitution of 20% RHA contributes to the maximum compressive strength within 28 d (1, 3, 14, 28 d). The addition of RHA accelerates the hydration evolution of calcium aluminate cement within 1 d, and improves the hydration degree of cement clinker. The substitution of 20% RHA results in an improvement of around 20% in hydration degree of calcium aluminate cement after 3 d. © 2016, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：1098 / 1103
页数：5
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