Carbonation resistance of sulphoaluminate cement-based high performance concrete

被引：27
|
作者：
Zhang Decheng [1 ,2 ]
Xu Dongyu [2 ]
Cheng Xin [2 ]
Chen Wen [2 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
[2] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2009年 / 24卷 / 04期
基金：
中国国家自然科学基金;
关键词：
sulphoaluminate cement; carbonation; high performance concrete (HPC); admixture; ettringite;
D O I：
10.1007/s11595-009-4663-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influences of water/cement ratio and admixtures on carbonation resistance of sulphoaluminate cement-based high performance concrete (HPC) were investigated. The experimental results show that with the decreasing water/cement ratio, the carbonation depth of sulphoaluminate cement-based HPC is decreased remarkably, and the carbonation resistance capability is also improved with the adding admixtures. The morphologies and structure characteristics of sulphoaluminate cement hydration products before and after carbonation were analyzed using SEM and XRD. The analysis results reveal that the main hydration product of sulphoaluminate cement, that is ettringite (AFt), decomposes after carbonation.
引用
收藏
页码：663 / 666
页数：4
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