Promoting effect and mechanism of several inorganic salts on hydration reaction of magnesium oxychloride cement at low temperature

doi:10.1016/j.conbuildmat.2021.126171

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 盐湖资源与化学实验室

	Promoting effect and mechanism of several inorganic salts on hydration reaction of magnesium oxychloride cement at low temperature
	Yan, Zhengbin; Yang, Pengwei; Huang, Jiaxin; Jia, Qian; Wen, Jing; Dong, Jinmei; Zheng, Weixin; Chang, Chenggong; Wang, Hongning; Chen, Ruoyu
刊名	CONSTRUCTION AND BUILDING MATERIALS
	2021-12
卷号	317
ISSN号	0950-0618
DOI	10.1016/j.conbuildmat.2021.126171
英文摘要	In this work, the Magnesium oxychloride cement (MOC) added with five kinds of inorganic salts (CaCl2, Ca (NO3)2, KCl, LiCl, and NH4NO3) were prepared under the low temperature (5 degrees C), and the effects of inorganic salts on the hydration reaction and engineering properties were investigated. The results show that the addition of inorganic salt can significantly improve the hydration reaction rate, increase the content of the 5-phase, and shorten the curing time. Compared with pure MOC, the compressive strength of MOC added with CaCl2 increased by about 128% after 7 days of curing. Moreover, the existence of inorganic salts weakened the surface shielding layer [Mg(H2O)6]2+ of active MgO, thereby improving the zeta potential of active MgO and promoting the diffusion rate of Mg2+. Overall, these results could provide valuable information for studying the hydration reaction and engineering performance of MOC at low temperatures.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34592]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Yan, Zhengbin,Yang, Pengwei,Huang, Jiaxin,et al. Promoting effect and mechanism of several inorganic salts on hydration reaction of magnesium oxychloride cement at low temperature[J]. CONSTRUCTION AND BUILDING MATERIALS,2021,317.
APA	Yan, Zhengbin.,Yang, Pengwei.,Huang, Jiaxin.,Jia, Qian.,Wen, Jing.,...&Chen, Ruoyu.(2021).Promoting effect and mechanism of several inorganic salts on hydration reaction of magnesium oxychloride cement at low temperature.CONSTRUCTION AND BUILDING MATERIALS,317.
MLA	Yan, Zhengbin,et al."Promoting effect and mechanism of several inorganic salts on hydration reaction of magnesium oxychloride cement at low temperature".CONSTRUCTION AND BUILDING MATERIALS 317(2021).