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DOI	10.1016/j.conbuildmat.2020.120525
	The damage mechanism and failure prediction of concrete under wetting-drying cycles with sodium sulfate solution
	Ren, Jingge; Lai, Yuanming; Bai, Ruiqiang; Qin, Yinghong
发表日期	2020
ISSN	0950-0618
EISSN	1879-0526
卷号	264
英文摘要	This study aims to investigate the damage mechanism and predict the failure time of concrete subjected to wetting and drying (WD) cycles in a sodium sulfate solution. To explore the growth rules and the growth rates of gypsum, the reaction-rate constant calculation formula of gypsum is proposed based on theories of chemical reaction kinetics. Subsequently, the formulae of the volume fractions of mirabilite and gypsum in the pore under each WD cycle are proposed and used to calculate the macroscopical tensile stress to determine the WD cycle number that the concrete can sustain. Finally, the reliability of the proposed model is verified by an indoor experiment. In addition, a new damage type of concrete, induced by filling-damaging cycles, is also found during the experiment. These findings can be used for evaluating the damage of concrete that is subjected to cyclic WD in sodium sulfate solution. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Wetting-drying cycle; Sodium sulfate; Gypsum; Crystal growth; Crystallization pressure; Durability
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS关键词	PORTLAND-CEMENT PASTE ; POROUS MATERIALS ; MINERAL SOLUBILITIES ; THERMAL-STABILITY ; TENSILE-STRENGTH ; CRYSTAL-GROWTH ; NATURAL-WATERS ; CRYSTALLIZATION ; ATTACK ; ETTRINGITE
WOS记录号	WOS:000585942300087
来源期刊	CONSTRUCTION AND BUILDING MATERIALS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239559
作者单位	[Ren, Jingge; Lai, Yuanming; Bai, Ruiqiang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Ren, Jingge; Lai, Yuanming; Bai, Ruiqiang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Qin, Yinghong] Guangxi Univ, Coll Civil Engn & Architecture, Nanning 530000, Guangxi, Peoples R China
推荐引用方式 GB/T 7714	Ren, Jingge,Lai, Yuanming,Bai, Ruiqiang,et al. The damage mechanism and failure prediction of concrete under wetting-drying cycles with sodium sulfate solution[J],2020,264.
APA	Ren, Jingge,Lai, Yuanming,Bai, Ruiqiang,&Qin, Yinghong.(2020).The damage mechanism and failure prediction of concrete under wetting-drying cycles with sodium sulfate solution.CONSTRUCTION AND BUILDING MATERIALS,264.
MLA	Ren, Jingge,et al."The damage mechanism and failure prediction of concrete under wetting-drying cycles with sodium sulfate solution".CONSTRUCTION AND BUILDING MATERIALS 264(2020).