Effect of chloride-induced reinforcing steel corrosion on the flexural strength of reinforced concrete beams

被引：1
作者：
Xia, Jin [1 ]
Jin, Wei-Liang [1 ]
Li, Long-Yuan [2 ]
机构：
[1] Zhejiang Univ, Inst Struct Engn, Hangzhou 310003, Zhejiang, Peoples R China
[2] Univ Birmingham, Sch Civil Engn, Birmingham B15 2TT, W Midlands, England
来源：
MAGAZINE OF CONCRETE RESEARCH | 2012年 / 64卷 / 06期
基金：
中国国家自然科学基金;
关键词：
LOAD-CARRYING CAPACITY; MECHANICAL-BEHAVIOR; RC BEAMS; DEFLECTION;
D O I：
10.1680/macr.10.00169
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An experimental investigation into the influence of reinforcing steel corrosion on the flexural capacity of conventionally reinforced concrete beams was conducted. Two types of specimens were constructed and the embedded flexural reinforcing bars were subjected to accelerated corrosion. Nine different corrosion damage levels were produced. An electro-migration method was used to accelerate the migration of chloride into the concrete, and a wet-dry cycle with small current was applied to speed up the corrosion of reinforcing steel bars. Corrosion-induced crack width and its relationship with the corrosion level were analysed. Based on the experimental data obtained from tests, a practicable approach is proposed to predict the residual flexural strength of corroded beams.
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收藏
页码：471 / 485
页数：15
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