Resistance of concrete against combined attack of chloride and sulfate under drying-wetting cycles

被引：164

作者：

Chen, Yanjuan ^{[1
,2
]}

Gao, Jianming ^{[1
,2
]}

Tang, Luping ^{[3
]}

Li, Xuehong ^{[1
,2
]}

机构：

[1] Southeast Univ, Dept Mat Sci & Engn, Nanjing 211189, Jiangsu, Peoples R China

[2] Southeast Univ, Key Lab Construct Mat, Nanjing 211189, Jiangsu, Peoples R China

[3] Chalmers Univ Technol, S-41296 Gothenburg, Sweden

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 106卷

基金：

中国国家自然科学基金;

关键词：

Concrete; Drying-wetting cycles; Combined attack; Chloride; Sulfate; Durability; LIMESTONE CEMENT CONCRETE; FLY-ASH CONCRETE; MINERAL ADMIXTURES; THAUMASITE FORM; DURABILITY; MECHANISM;

D O I：

10.1016/j.conbuildmat.2015.12.151

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this research, combined solution of chloride and sulfate was investigated for three different mixtures, including fly ash and slag. Mass change, dynamic modulus of elasticity, chloride penetration depths were tested in the different solution. Results indicated that OPC specimens showed bigger deterioration compared specimens with fly ash and slag exposed to combined solution attack under drying-wetting cycles. Additional, higher sulfate contend in combined solution retarded damage for OPC under drying-wetting cycle. Concerning the microstructure and deformation of samples, XRD-analyses is in accordance with TG/DSC-analyses, moreover, DSC/TG could quantified the results from XRD-analyses. (C) 2015 Published by Elsevier Ltd.

引用

页码：650 / 658

页数：9

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