Crack shape and rust distribution in corrosion-induced cracking concrete

被引：135
|
作者：
Zhao, Yuxi [1 ]
Yu, Jiang [1 ]
Hu, Bingyan [1 ]
Jin, Weiliang [1 ]
机构：
[1] Zhejiang Univ, Inst Struct Engn, Hangzhou 310058, Zhejiang, Peoples R China
来源：
CORROSION SCIENCE | 2012年 / 55卷
基金：
中国国家自然科学基金;
关键词：
Steel reinforced concrete; Modelling studies; Rust; INDUCED COVER CRACKING; REINFORCED-CONCRETE; STEEL CORROSION; REBAR CORROSION; MODEL; PRODUCTS; WIDTH; BAR;
D O I：
10.1016/j.corsci.2011.11.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study investigated a reinforced concrete specimen that had deteriorated in an artificial environment for 2 years. The crack width and the rust distribution were observed by digital microscopy. The variation of the total circumferential crack width along the radial direction is presented using a linear function. Observation reveals that rust does not penetrate into the corrosion-induced cracks before concrete surface cracking. After concrete surface cracking, rust fills the cracks, lining the edges of the cracks due to the circulation of the outer solution. A schematic diagram is proposed to describe crack propagation and rust development. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：385 / 393
页数：9
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