Study of frost resistance on air-entrained concrete in sulfated medium

被引：1

作者：

Yong, G ^{[1
]}

Jie, Y ^{[1
]}

Yang, WC ^{[1
]}

Zhang, BS ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150006, Peoples R China

来源：

ENVIRONMENTAL ECOLOGY AND TECHNOLOGY OF CONCRETE | 2006年 / 302-303卷

关键词：

air-entrained concrete; sodium sulfate; freeze-thaw cycles; scaling; dynamic elastic modulus;

D O I：

10.4028/www.scientific.net/KEM.302-303.125

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Frost resistance of plain concrete and air-entrained concrete subjected to freeze-thaw cycles in fresh water and 5 % and 7 % sodium sulfate solution are investigated in this paper. The test results show that the frost resistance of concrete is different in the different medium. The properties of concrete frozen in 5 % and 7 % sodium solution are different from that in fresh water, and entraining air into concrete properly can increase the frost resistance significantly whether in fresh water or in sulfate solution. Higher strength concrete could resist the degradation of freezing and thawing cycles in water, but some of them failed suddenly in midspan of specimens under the sulfate solution.

引用

页码：125 / 130

页数：6

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