The effect of nano-silica on the properties of magnesium oxychloride cement

doi:10.1680/jadcr.19.00122

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

	The effect of nano-silica on the properties of magnesium oxychloride cement
	Wen, Jing; Zheng, Weixin; Chang, Chenggong; Liu, Pan; Li, Ying; Xiao, Xueying; Huang, Qing; Dong, Jinmei
刊名	ADVANCES IN CEMENT RESEARCH
	2021-09
卷号	33 期号:9 页码:413-422
ISSN号	0951-7197
DOI	10.1680/jadcr.19.00122
英文摘要	As is well known, nano-particles have received particular attention in various application fields for fabricating materials with novel functionalities. This paper presents the effect of nano-silica on the properties of magnesium oxychloride cement (MOC), such as setting time, the hydration process, compressive strength, composition and microstructure of the paste. Results show that nano-silica can promote the hydration process and shorten the initial and final setting times of MOC, which were shortened by 14% and 8% when 5% nano-silica was incorporated in the MOC. In addition, nano-silica can increase the compressive strengths and make the pore structure of MOC denser. The compressive strengths at 3 days and 28 days increase by 29.5% and 18.0%, respectively, when 5% nano-silica is incorporated in MOC. Compared with the pure MOC paste, nano-silica yields no new hydration products in MOC besides P5 and magnesium hydroxide (Mg(OH)(2)). The higher compressive strength is mainly attributed to the water absorption and filling effect of nano-silica in MOC slurry.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34363]
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	Wen, Jing,Zheng, Weixin,Chang, Chenggong,et al. The effect of nano-silica on the properties of magnesium oxychloride cement[J]. ADVANCES IN CEMENT RESEARCH,2021,33(9):413-422.
APA	Wen, Jing.,Zheng, Weixin.,Chang, Chenggong.,Liu, Pan.,Li, Ying.,...&Dong, Jinmei.(2021).The effect of nano-silica on the properties of magnesium oxychloride cement.ADVANCES IN CEMENT RESEARCH,33(9),413-422.
MLA	Wen, Jing,et al."The effect of nano-silica on the properties of magnesium oxychloride cement".ADVANCES IN CEMENT RESEARCH 33.9(2021):413-422.