Effect of Nitrite Inhibitor on the Macrocell Corrosion Behavior of Reinforcing Steel

被引：12

作者：

Cao, Zhonglu ^{[1
]}

Hibino, Makoto ^{[1
]}

Goda, Hiroki ^{[1
]}

机构：

[1] Kyushu Inst Technol, Dept Civil Engn, Concrete Lab, Kitakyushu, Fukuoka 8048550, Japan

来源：

JOURNAL OF CHEMISTRY | 2015年 / 2015卷

关键词：

CALCIUM NITRITE; CONCRETE; CHLORIDE; IONS; IRON;

D O I：

10.1155/2015/402182

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The effect of nitrite ions on the macrocell corrosion behavior of reinforcing steel embedded in cement mortar was investigated by comparing and analyzing the macrocell corrosion current, macrocell polarization ratios, and slopes of anodic and cathodic steels. Based on the experimental results, the relationship between macrocell potential difference and macrocell current density was analyzed, and the mechanism of macrocell corrosion affected by nitrite ions was proposed. The results indicated that nitrite ions had significant impact on the macrocell polarization ratios of cathode and anode. The presence of nitrite could reduce the macrocell current by decreasing the macrocell potential difference and increasing the macrocell polarization resistance of the anode.

引用

页数：15

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