The micro-solution electrochemical method to evaluate rebar corrosion in reinforced concrete structures

被引：8
作者：
Tian, Yuwan [1 ,2 ]
Dong, Chaofang [1 ]
Cheng, Xuequn [1 ]
Wan, Yingqi [1 ]
Wang, Gui [2 ]
Xiao, Kui [1 ]
Li, Xiaogang [1 ]
机构：
[1] Univ Sci & Technol Beijing, Corros & Protect Ctr, Beijing 100083, Peoples R China
[2] Ocean Univ Guangdong, Engn Coll, Zhanjiang 524088, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 151卷
基金：
中国国家自然科学基金;
关键词：
Rebar corrosion; Corrosion rate; Micro-solution; Electrochemical technique; Real site; EMBEDDABLE REFERENCE ELECTRODE; STEEL REINFORCEMENT; PORE SOLUTION; ON-SITE; BEHAVIOR; PERFORMANCE; ENVIRONMENT; RESISTANCE; ROUGHNESS; IMPEDANCE;
D O I：
10.1016/j.conbuildmat.2017.06.003
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An electrochemical method by submersing the HRB400 rebar specimen in simulated micro pore solution (47.125 mu L) is proposed to rapidly evaluate the corrosion rate of HRB400 in concrete. The results show that the corrosion rate of HRB400 in micro-solution is about five times lower than that in bulk solution. The reason for this difference is the anodic polarization caused by the higher concentration of dissolved iron ions in micro-solution. There is a small relational dispersed degree of corrosion rate measured by the optimized electrochemical cell in micro-solution and the real site studies. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：607 / 614
页数：8
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