Chloride absorption capacity of calcium silicate hydrate (C-S-H) and its effect on steel corrosion in simulated concrete pore solution

doi:10.1080/21650373.2023.2243477

	Chloride absorption capacity of calcium silicate hydrate (C-S-H) and its effect on steel corrosion in simulated concrete pore solution
	Zhang, Yuguo 1,2,3; Sun, Congtao 1,2,3,4; Zhang, Peng2 ; Sun, Ming1,3 ; Geng, Yuanjie 5; Zhao, Maomi 4; Fan, Liang 1,3; Liu, Nazhen 1,3; Duan, Jizhou 1,3
	2023-08-02
发表期刊	JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS
ISSN	2165-0373
页码	16
通讯作者	Sun, Congtao(suncongtao@qdio.ac.cn) ; Zhang, Peng(zhp0221@163.com)
摘要	The effect of calcium silicate hydrate (C-S-H) on chloride (Cl-) binding and steel corrosion in simulated concrete pore solution (SCPS) was evaluated. The results showed that Cl- absorbed by C-S-H conformed to Freundlich isotherm for 0.1-1.0 M of Cl-. When C-S-H reached equilibrium in saturated Ca(OH)(2) solution, its degree of polymerization increased. The high pH is unfavorable for the absorption of Cl- by C-S-H, but favorable for the passivation of steel. The synthetic C-S-H powder contains NO3-, which prolongs the passivation time of steel, but the presence of silicate is favorable for the formation of a passivation film with good corrosion resistance. The addition of C-S-H promoted the chloride threshold value of steel corrosion and delayed the corrosion development process.
关键词	C-S-H chloride binding steel corrosion chloride threshold value passive film
DOI	10.1080/21650373.2023.2243477
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 ; Science & Technology - Other Topics ; Materials Science
WOS类目	Construction & Building Technology ; Green & Sustainable Science & Technology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001047091300001
出版者	TAYLOR & FRANCIS LTD
WOS关键词	REINFORCED-CONCRETE ; CARBON-STEEL ; BINDING ; BEHAVIOR ; CEMENT ; IONS ; ENVIRONMENTS ; PASSIVATION ; ADSORPTION ; METAKAOLIN
引用统计	被引频次：1[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/337002/182820
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, Peoples R China 2.Qingdao Univ Technol, Sch Civil Engn, Qingdao, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao, Peoples R China 4.Guangxi Acad Sci, Inst Marine Corros Protect, Guangxi Key Lab Marine Environm Sci, Nanning, Peoples R China 5.Inner Mongolia Univ Sci & Technol, Sch Civil Engn, Baotou, 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 absorption capacity of calcium silicate hydrate (C-S-H) and its effect on steel corrosion in simulated concrete pore solution[J]. JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS,2023:16.
APA	Zhang, Yuguo.,Sun, Congtao.,Zhang, Peng.,Sun, Ming.,Geng, Yuanjie.,...&Duan, Jizhou.(2023).Chloride absorption capacity of calcium silicate hydrate (C-S-H) and its effect on steel corrosion in simulated concrete pore solution.JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS,16.
MLA	Zhang, Yuguo,et al."Chloride absorption capacity of calcium silicate hydrate (C-S-H) and its effect on steel corrosion in simulated concrete pore solution".JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS (2023):16.