Crack shape and rust distribution in corrosion-induced cracking concrete

被引：142

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

页码：385 / 393

页数：9

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