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

doi:10.3390/ma15155138

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	Anti-Corrosion Performance of Migratory Corrosion Inhibitors on Reinforced Concrete Exposed to Varying Degrees of Chloride Erosion
	Sun, Congtao 2,3; Sun, Ming 2,3; Liu, Junde 1; Dong, Zhenping 1; Fan, Liang 2,3; Duan, Jizhou 2,3
刊名	MATERIALS
	2022-08-01
卷号	15 期号:15 页码:12
关键词	anti-corrosion performance MCIs reinforced concrete chloride erosion steel bar
DOI	10.3390/ma15155138
通讯作者	Sun, Congtao(suncongtao@qdio.ac.cn) ; Dong, Zhenping(dongzp_02@163.com)
英文摘要	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.
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
语种	英语
出版者	MDPI
WOS记录号	WOS:000839206100001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/179937]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Sun, Congtao; Dong, Zhenping
作者单位	1.Xian Univ Architecture & Technol, Sch Civil Engn, Xian 710055, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
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.