Effect of Anodic and Cathodic Chloride Contents on the Macrocell Corrosion and Polarization Behavior of Reinforcing Steel

被引：4
|
作者：
Cao Zhonglu [1 ,2 ,3 ]
Chen Haoyu [1 ]
Wei Lianyu [2 ]
Hibino, Makoto [3 ]
机构：
[1] CCCC First Harbor Engn Co Ltd, Tianjin Port Engn Inst Ltd, Tianjin 300222, Peoples R China
[2] Hebei Univ Technol, Sch Civil Engn, Tianjin 300132, Peoples R China
[3] Kyushu Inst Technol, Dept Civil Engn, Concrete Lab, Kitakyushu, Fukuoka 8048550, Japan
来源：
INTERNATIONAL JOURNAL OF ENGINEERING RESEARCH IN AFRICA | 2016年 / 22卷
关键词：
Anodic and cathodic chloride ions; Macrocell current; Polarization ratio and slope; Reinforcing steel;
D O I：
10.4028/www.scientific.net/JERA.22.45
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of anodic and cathodic chloride contents on the macrocell corrosion and polarization behavior of reinforcing steel embedded in cement mortars were investigated and clarified. The results indicated that the higher cathodic chloride content could accelerate the cathodic reaction of cathode and make the controlling mode of macrocell corrosion changed from cathodic control to mixed control or anodic control. The higher anodic chloride content could accelerate the anodic reaction of anode and make the macrocell corrosion more controlled by cathode. These results will provide a guide to inhibiting the macrocell corrosion of reinforcing steel in concrete, which are not only useful for engineers to design and construct the new marine reinforced concrete structures, but also are helpful for engineers to repair or rehabilitate the existing chloride contaminated reinforced concrete structures, in the condition of avoiding the adverse effect of macrocell corrosion induced by the non-uniform distribution of anodic and cathodic chloride.
引用
收藏
页码：45 / 58
页数：14
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