期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 44, 期 -, 页码 507-513出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2013.03.030
关键词
Organic corrosion inhibitor; Concrete; Electrochemical evaluation
The aim of this study is to examine the protective effect of N,N'dimethylaminoethanol (DMEA - organic corrosion inhibitor) against rebar corrosion in the presence of chloride ions. The inhibiting properties of DMEA based corrosion inhibitor were evaluated in artificial concrete pore solution and in cement mortar specimens. The electrochemical measurements were performed using synthetic concrete pore solution which was contaminated with chloride ions in order to simulating the concrete interstitial electrolyte. Corrosion parameters such as corrosion rate, corrosion current density i(corr) polarization resistance R-p and pitting potential E-pitt of reinforcing steel have been evaluated by electrochemical measurements and compared with that obtained from metal loss determination. Results indicated that the addition of N,N'dimethylaminoethanol to the artificial concrete pore solution as well as into the concrete contaminated with chloride ions decreases the corrosion rate of steel reinforcement. (C) 2013 Elsevier Ltd. All rights reserved.
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