Carbonation Resistance of Sulphoaluminate Cement-based High Performance Concrete

被引：0

作者：

张德成

机构：

[1] School of Materials Science and Engineering ,Wuhan University of Technology

[2] School of Materials Science and Engineering,University of Jinan

来源：

Journal of Wuhan University of Technology(Materials Science) | 2009年 / 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：

暂无

中图分类号：

TU528.0 [一般性问题];

学科分类号：

0805 ; 080502 ; 081304 ;

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

页码：663 / 666

页数：4

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