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CLC number: TU375.1

On-line Access: 2014-03-04

Received: 2013-05-12

Revision Accepted: 2013-10-25

Crosschecked: 2014-02-20

Cited: 2

Clicked: 5706

Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2014 Vol.15 No.3 P.197-207


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

Author(s):  Feng Wu1,2, Jing-hai Gong1, Zhang Zhang2

Affiliation(s):  1. Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; more

Corresponding email(s):   powernovel@163.com

Key Words:  Corrosive crack width, Non-uniform corrosion, Corrosion rate, Electrolyte accelerated corrosion test, Reinforced cubic beams

Feng Wu, Jing-hai Gong, Zhang Zhang. Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width[J]. Journal of Zhejiang University Science A, 2014, 15(3): 197-207.

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author="Feng Wu, Jing-hai Gong, Zhang Zhang",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width
%A Feng Wu
%A Jing-hai Gong
%A Zhang Zhang
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 3
%P 197-207
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300280

T1 - Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width
A1 - Feng Wu
A1 - Jing-hai Gong
A1 - Zhang Zhang
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 3
SP - 197
EP - 207
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300280

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.




Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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