Anti-Corrosion Performance of Migratory Corrosion Inhibitors on Reinforced Concrete Exposed to Varying Degrees of Chloride Erosion

doi:10.3390/ma15155138

	Anti-Corrosion Performance of Migratory Corrosion Inhibitors on Reinforced Concrete Exposed to Varying Degrees of Chloride Erosion
	Sun, Congtao 1,2; Sun, Ming1,2 ; Liu, Junde 3; Dong, Zhenping 3; Fan, Liang 1,2; Duan, Jizhou1,2
	2022-08-01
发表期刊	MATERIALS
卷号	15 期号:15 页码:12
通讯作者	Sun, Congtao([email protected]) ; Dong, Zhenping([email protected])
摘要	This study investigated the anti-corrosion performance of commercial amino alcohol migratory corrosion inhibitors (MCIs) on concrete that underwent varying degrees of chloride erosion. Electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PD), scanning electron microscopy, and energy dispersive spectroscopy (SEM-EDS) analyses were performed to study the anti-corrosion performance and mechanism of the MCIs on the steel bars. The results indicated that the corrosion resistance of the steel bars in concrete was significantly improved by coating with the MCIs, and the earlier the specimens were coated with the MCIs, the higher the anti-corrosion efficiency. The anti-corrosion efficiency was 55.35% when the MCIs coating was applied before chloride erosion; however, the anti-corrosion efficiency decreased to 3.40% when the MCIs coating was applied after the ninth drying-wetting cycle. The improvement in corrosion resistance of the steel bar in concrete coated with MCIs was due to the protective MCIs-molecule film that formed on the steel bar surfaces, and the oxidative dissolution of iron at the anode was effectively inhibited by the MCIs coating.
关键词	anti-corrosion performance MCIs reinforced concrete chloride erosion steel bar
DOI	10.3390/ma15155138
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41827805]; Natural Science Key Foundation of Shandong Province[ZR2020KE046]; Strategic Priority Project of CAS[XDA13040402]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000839206100001
出版者	MDPI
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179938
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Sun, Congtao; Dong, Zhenping
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 3.Xian Univ Architecture & Technol, Sch Civil Engn, Xian 710055, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Sun, Congtao,Sun, Ming,Liu, Junde,et al. Anti-Corrosion Performance of Migratory Corrosion Inhibitors on Reinforced Concrete Exposed to Varying Degrees of Chloride Erosion[J]. MATERIALS,2022,15(15):12.
APA	Sun, Congtao,Sun, Ming,Liu, Junde,Dong, Zhenping,Fan, Liang,&Duan, Jizhou.(2022).Anti-Corrosion Performance of Migratory Corrosion Inhibitors on Reinforced Concrete Exposed to Varying Degrees of Chloride Erosion.MATERIALS,15(15),12.
MLA	Sun, Congtao,et al."Anti-Corrosion Performance of Migratory Corrosion Inhibitors on Reinforced Concrete Exposed to Varying Degrees of Chloride Erosion".MATERIALS 15.15(2022):12.