标题：
Reinforcement corrosion research based on electrochemical impedance spectroscopy for coral aggregate seawater concrete in a seawater immersion environment
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所属单位：
航空学院
发表刊物：
J Test Eval
摘要：
The use of electrochemical impedance spectroscopy (EIS) method, Nyquist plots, and Bode impedance module plots of coral aggregate seawater concrete (CASC) at different exposure times in a seawater immersion environment was tested. The most suitable equivalent electric circuit (EEC) for fitting reinforcement corrosion of CASC in a seawater immersion environment was investigated. The reinforcement corrosion electrochemical parameters were calculated. The factors affecting reinforcement corrosion of CASC were researched. The results showed that in order to reduce reinforcement corrosion risk, the concrete cover thickness should be thicker than 5.5 cm. As exposure time increased, the decrease rate of anticorrosion effectiveness for the calcium nitrate inhibitor was higher than that for the amino alcohol inhibitor. Corrosion resistance would improve if the inhibitor was preabsorbed. Corrosion resistance of different types of reinforcements followed the rule: 2205 duplex stainless steel > 316 stainless steel > new organic coated steel > zinc-chromium coated steel > common steel. Copyright © 2019 by ASTM International
ISSN号：
0090-3973
是否译文：
否
发表时间：
2020-03-01
合写作者：
余红发,麻海燕,Wu, Zhangyu
通讯作者：
达波
发表时间：
2020-03-01
学位：工学博士学位
所在单位：民航学院/飞行学院