The lineal Polarization Method for Corrosion Rate Measurement of Reinforcing Bar of Concrete in Situ
Abstract
A linear polarization method was applied to measure corrosion rate of reinforcing bar of concrete in situ. Generally in the experiment, the area and shape of the reinforcing bar as a working electrode can be changed and adjusted according to our needs. But polarization area cannot be defined when reinforcing bar is polarized in situ, so that a real R p can't be obtained. Thus the purpose of present work is to improve the measurement system. We used the double_ring auxiliary electrodes made by ourselves. The size of the double_ring auxiliary electrodes was adjusted repeatedly until the real polarization area was equivalent to one of the auxiliary electrodes. Using such an auxiliary electrode to measure R p, we obtained the result that the measurement error of R p is about 2.5%. This result can meet the need of measurement in situ.
Keywords
Reinforcing bar, Linear polarization, Corrosion rate, Concrete
Publication Date
2000-08-28
Online Available Date
2000-08-28
Revised Date
2000-08-28
Received Date
2000-08-28
Recommended Citation
Ai-ling DU, Wen-tao HOU, He-ming ZHANG, Jian-qun LUO.
The lineal Polarization Method for Corrosion Rate Measurement of Reinforcing Bar of Concrete in Situ[J]. Journal of Electrochemistry,
2000
,
6(3): 297-304.
DOI: 10.61558/2993-074X.1390
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol6/iss3/5
Included in
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