Strength development and micro-mechanism of magnesium oxychloride cement concrete

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	Strength development and micro-mechanism of magnesium oxychloride cement concrete
	Qiao, H. X.1,2; Zhu, B. R.1; Shi, Y. Y.1; Dong, J. M.2 ; Wanjiru, M. Elizabeth 3
	2015-04-01
发表期刊	MATERIALS RESEARCH INNOVATIONS
卷号	19 页码:S185-S190
关键词	Magnesium Oxychloride Cement Concrete Compression Strength Micro-mechanism
摘要	This paper presents the feature of magnesium oxychloride cement and its particle. Water-resistant admixture and other inorganic materials (silica fume, fly ash and slag) with mix proportion were added to the mix proportion to improve the mechanical properties of magnesium oxychloride cement concrete. By recording the uniaxial compressive strength of concrete at 7-128 days, the influences on the early and late strength of magnesium oxychloride cement caused by different inorganic materials and varied consumption of magnesium chloride solution were analysed. It is shown that the early strength development is fast and the strength with fly ash performs the highest strength; the late strength of concrete reduces because of the scumming of magnesium oxychloride cement, but the strength resumes. Using X-ray diffraction, scanning electron microscope and energy dispersive X-ray spectroscope to investigate the micro-mechanism, the dense gel phase is found in magnesium oxychloride cement concrete with fly ash, which led to the advantage in compressive strength over other samples.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6137
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所盐湖资源综合利用工程技术中心
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 3.Lanzhou Univ Technol, Literature Sch Int Educ, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Qiao, H. X.,Zhu, B. R.,Shi, Y. Y.,et al. Strength development and micro-mechanism of magnesium oxychloride cement concrete[J]. MATERIALS RESEARCH INNOVATIONS,2015,19:S185-S190.
APA	Qiao, H. X.,Zhu, B. R.,Shi, Y. Y.,Dong, J. M.,&Wanjiru, M. Elizabeth.(2015).Strength development and micro-mechanism of magnesium oxychloride cement concrete.MATERIALS RESEARCH INNOVATIONS,19,S185-S190.
MLA	Qiao, H. X.,et al."Strength development and micro-mechanism of magnesium oxychloride cement concrete".MATERIALS RESEARCH INNOVATIONS 19(2015):S185-S190.