Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width

被引：0
作者：
Feng Wu
Jing-hai Gong
Zhang Zhang
机构：
[1] Shanghai Jiao Tong University,Department of Civil Engineering
[2] Shanghai Third Harbour Engineering Science & Technology Research Institute Co.,undefined
[3] Ltd.,undefined
来源：
Journal of Zhejiang University SCIENCE A | 2014年 / 15卷
关键词：
Corrosive crack width; Non-uniform corrosion; Corrosion rate; Electrolyte accelerated corrosion test; Reinforced cubic beams;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper deals with a correction method for corrosive crack width caused by non-uniform corrosion. Considering the corrosion cracking characteristics of a reinforced concrete structure, a correction model of corrosive crack width involving the mutual impacts between adjacent measuring points is established. The calculation model for steel bar corrosion rate for single point is obtained through quantitative analysis and accelerated corrosion tests on more than 70 reinforced cubic members. Two methods are suggested by combining two models, the correction and the corrosion calculation ones. Electrolyte accelerated corrosion tests on seven beams are carried out to verify these methods. The experimental results show that the ratio between the maximum corrosion rate by the indirect method and the measured average value ranges from 1.4 to 2.4, and the indirect method is shown to be an effective method for calculating the maximum corrosion rate.
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页码：197 / 207
页数：10
相关论文
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