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| Effect of Surface Treatment on Corrosion of Rebar Embedded in Concrete |
| Received:May 12, 2012 Revised:August 15, 2012 |
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| DOI： |
| KeyWord:concrete corrosion of rebar surface treatment A. C. impedance spectrum |
| Author | Institution |
| ZOU Qun |
1. Wuhan University of Technology， Wuhan ， China;2. Wuhan Institute of Technology， Wuhan ， China |
| SHUI Zhong-he |
Wuhan University of Technology， Wuhan ， China |
| XU Chang-sheng |
Wuhan Research Institute of Meterial Protection， Wuhan ， China |
| CHEN Ke-qin |
Wuhan Railway Vocational College of Technology， Wuhan ， China |
| XIAO Yi-de |
Wuhan Research Institute of Meterial Protection， Wuhan ， China |
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| Abstract: |
| Surface treatments of thermal spraying Zn metal coatings, epoxy resin coating, and electrodeposited Zn/ passivation were applied on built-in rebar in reinforced concrete. Electrochemical impedance spectroscopy (EIS) was applied to explore the corrosion behavior of the rebar and compare with steel without protection. The results showed that in the concrete-clad condition, the three kinds of coating (plating) layer have significant effect for preventing general corrosion of the rebar; in contrast, epoxy coatings (guarantee coating against mechanical damage or weld damaged) has better corrosion inhibition effect. |
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