Corrosion performance of steel reinforcement in simulated concrete pore solutions in the presence of imidazoline quaternary ammonium salt corrosion inhibitor

被引：106

作者：

Fei, Fei-long ^{[1
]}

Hu, Jie ^{[1
]}

Wei, Jiang-xiong ^{[1
]}

Yu, Qi-jun ^{[1
]}

Chen, Zheng-shan ^{[1
]}

机构：

[1] S China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 70卷

基金：

中国国家自然科学基金;

关键词：

Corrosion inhibitor; Reinforcement; Imidazoline quaternary ammonium salt; Simulated concrete pore solution; ELECTROCHEMICAL CHLORIDE EXTRACTION; CALCIUM NITRITE; CEMENT PASTE; MILD-STEEL; PART; THRESHOLD; INJECTION; CARBONATION; BEHAVIOR; REPAIR;

D O I：

10.1016/j.conbuildmat.2014.07.082

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study, the corrosion inhibition performance of steel reinforcement in the simulated concrete pore solution containing 3.5 wt.% NaCl in the presence of a tailored cationic type of imidazoline quaternary ammonium salt corrosion inhibitor was characterized by electrochemical measurements and surface analysis. The results indicate that the IQS can significantly improve the polarization resistance and pitting potential and reduce the corrosion current density of reinforcement. The main inhibition mechanism is most likely due to the adsorption of the corrosion inhibitor on the steel surface, leading to a reduced corrosion current density of the steel reinforcement. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：43 / 53

页数：11

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