Corrosion-induced concrete cracking model considering corrosion product-filled paste at the concrete/steel interface

被引：80
|
作者：
Zhao, Yuxi [1 ]
Dong, Jianfeng [1 ]
Wu, Yingyao [1 ]
Jin, Weiliang [1 ]
机构：
[1] Zhejiang Univ, Inst Struct Engn, Hangzhou 310058, Zhejiang, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 116卷
基金：
中国国家自然科学基金;
关键词：
Corrosion layer; Corrosion product-filled paste; Cracking model; Steel reinforced concrete; INDUCED COVER CRACKING; REINFORCED-CONCRETE; STEEL CORROSION; RUST LAYER; REBAR CORROSION; PENETRATION; DAMAGE; BARS;
D O I：
10.1016/j.conbuildmat.2016.04.097
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
When steel corrosion happens in concrete, the corrosion products migrate to the pores at the steel/concrete interface. The relationship between the thickness of the corrosion product-filled paste (CP) and that of the corrosion layer (CL) was analysed and established. This relationship can describe the phenomenon that the corrosion products are filling in the concrete pores and accumulating at the steel/concrete interface simultaneously. Based on this relationship, a corrosion-induced concrete surface cracking model which can quantitatively consider corrosion product-filled paste at the concrete/steel interface is proposed. This model is verified and in reasonable agreement with the experimental results. The possibility of the application of the proposed corrosion-induced cracking model to the non-uniform corrosion case is also discussed. (c) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：273 / 280
页数：8
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