Early strength development and hydration of ordinary Portland cement calcium aluminate cement pastes

被引：87
|
作者：
Gu, P
Beaudoin, JJ
Quinn, EG
Myers, RE
机构：
[1] Natl Research Council, Ottawa, Ont
来源：
ADVANCED CEMENT BASED MATERIALS | 1997年 / 6卷 / 02期
关键词：
calcium aluminate cement; colorimetry; ettringite; microstructure; Portland cement; strength;
D O I：
10.1016/S1065-7355(97)00008-4
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The early strength development of ordinary Portland cement (OPC)/calcium aluminate cement (CAC) pastes (92.5/7.5, 80/20, and 20/80) was studied. Conduction calorimetry, X-ray diffraction, and scanning electron microscopy methods were used to monitor the heat evolution and microstructural changes of these pastes. It is apparent that ettringite formation contributes to the early ''set strength'' in the 80/20 paste. The OPC hydration seems to be delayed by the presence of CAC. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：53 / 58
页数：6
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