Comparative studies on passivation and corrosion behaviors of two types of steel bars in simulated concrete pore solution

doi:10.1016/j.conbuildmat.2020.120971

CORC > 海洋研究所 > 中国科学院海洋研究所

	Comparative studies on passivation and corrosion behaviors of two types of steel bars in simulated concrete pore solution
	Cai, Yamei 3; Zheng, Haibing 3; Hu, Xiang 3; Lu, Jianxin 3; Poon, Chi Sun 3; Li, Weihua 1,2
刊名	CONSTRUCTION AND BUILDING MATERIALS
	2021-01-10
卷号	266 页码:9
关键词	Stirrups Steel bars Corrosion Passive film Chloride threshold value
ISSN号	0950-0618
DOI	10.1016/j.conbuildmat.2020.120971
通讯作者	Zheng, Haibing(zhenghaibing.ln@163.com) ; Poon, Chi Sun(cecspoon@polyu.edu.hk)
英文摘要	The corrosion behavior of two types of stirrups, a plain steel bar and a ribbed steel bar, were studied in this work. The results demonstrated that a better passive state was achieved on B500, which was due to a relatively higher concentration of Fe2+ oxides at the first 2 nm depths of the film, even though B500 film had relatively less FeOx contents, because Fe2+ oxides had a better protective property than Fe3+ oxides. Furthermore, the slightly lower donor density of B500 film in the M-S analysis results presented the much less point defect in the film, showing an increase in the anti-corrosion property of passive film. These contributed to a higher chloride threshold value of B500, 4 times higher than that of 5275. Therefore, compared with 5275, B500 stirrups could be more suitable for the application in the severe service environment. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	Hong Kong Branch of National Engineering Research Center for Steel Construction[1-BBYP] ; Hong Kong Polytechnic University ; National Natural Science Fund for Distinguished Young Scholars[51525903]
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000600793000031
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/169510]
专题	中国科学院海洋研究所
通讯作者	Zheng, Haibing; Poon, Chi Sun
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Sun Yat Sen Univ, Coll Chem Engn & Technol, Tangjiawan 519082, Zhuhai, Peoples R China 3.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Cai, Yamei,Zheng, Haibing,Hu, Xiang,et al. Comparative studies on passivation and corrosion behaviors of two types of steel bars in simulated concrete pore solution[J]. CONSTRUCTION AND BUILDING MATERIALS,2021,266:9.
APA	Cai, Yamei,Zheng, Haibing,Hu, Xiang,Lu, Jianxin,Poon, Chi Sun,&Li, Weihua.(2021).Comparative studies on passivation and corrosion behaviors of two types of steel bars in simulated concrete pore solution.CONSTRUCTION AND BUILDING MATERIALS,266,9.
MLA	Cai, Yamei,et al."Comparative studies on passivation and corrosion behaviors of two types of steel bars in simulated concrete pore solution".CONSTRUCTION AND BUILDING MATERIALS 266(2021):9.