Chloride binding of monosulfate hydrate (AFm) and its effect on steel corrosion in simulated concrete pore solution

doi:10.1016/j.jobe.2023.105945

	Chloride binding of monosulfate hydrate (AFm) and its effect on steel corrosion in simulated concrete pore solution
	Zhang, Yuguo 1,2,5; Sun, Congtao 1,2,5; Zhang, Peng2 ; Sun, Ming1,5 ; Geng, Yuanjie 4,5; Zhao, Maomi 3; Fan, Liang 1,5; Liu, Nazhen 1,5; Duan, Jizhou1,5
	2023-05-15
发表期刊	JOURNAL OF BUILDING ENGINEERING
卷号	67 页码:14
通讯作者	Sun, Congtao([email protected]) ; Zhang, Peng([email protected])
摘要	The impact of monosulfate hydrate (AFm) on chloride (Cl- ) binding and steel corrosion in simulated concrete pore solutions (SCPSs) was evaluated. In the SCPS with AFm added, a high concentration of Cl- promoted the Cl- binding amount per unit AFm without producing Kuzel's salt. The Cl- binding capacity of AFm could be improved by appropriately changing the amount of AFm with a constant Cl- concentration. The addition of AFm to the SCPS shortened the passivation time and created a more stable passivation film of the steel. The SO42- produced by the AFm binding with Cl- preferentially reacted with AFm to form AFt, and it affected the stability of the Friedel's salt to release Cl- . The addition of AFm raised the chloride threshold value (CTV) for steel corrosion. However, after reaching the CTV, the corrosion rate of steels increased dramatically, due to the release of the bound Cl- .
关键词	Chloride binding Steel corrosion Chloride threshold value Passivation film AFm
DOI	10.1016/j.jobe.2023.105945
收录类别	SCI
语种	英语
资助项目	Natural Science Key Foundation of Shandong Province[ZR2020KE046]; National Natural Science Foundation of China[41827805]
WOS研究方向	Construction & Building Technology ; Engineering
WOS类目	Construction & Building Technology ; Engineering, Civil
WOS记录号	WOS:001012834900001
出版者	ELSEVIER
WOS关键词	SULFATE ; MAGNESIUM ; SEAWATER ; BEHAVIOR ; RISK ; IONS
引用统计	被引频次：16[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/337002/182368
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Sun, Congtao; Zhang, Peng
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Univ Technol, Sch Civil Engn, Qingdao 266033, Peoples R China 3.Guangxi Acad Sci, Inst Marine Corros Protect, Guangxi Key Lab Marine Environm Sci, Nanning 530007, Peoples R China 4.Inner Mongolia Univ Sci & Technol, Sch Civil Engn, Baotou 014010, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, 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	Zhang, Yuguo,Sun, Congtao,Zhang, Peng,et al. Chloride binding of monosulfate hydrate (AFm) and its effect on steel corrosion in simulated concrete pore solution[J]. JOURNAL OF BUILDING ENGINEERING,2023,67:14.
APA	Zhang, Yuguo.,Sun, Congtao.,Zhang, Peng.,Sun, Ming.,Geng, Yuanjie.,...&Duan, Jizhou.(2023).Chloride binding of monosulfate hydrate (AFm) and its effect on steel corrosion in simulated concrete pore solution.JOURNAL OF BUILDING ENGINEERING,67,14.
MLA	Zhang, Yuguo,et al."Chloride binding of monosulfate hydrate (AFm) and its effect on steel corrosion in simulated concrete pore solution".JOURNAL OF BUILDING ENGINEERING 67(2023):14.