Strength development and micro-mechanism of magnesium oxychloride cement concrete

doi:10.1179/1432891715Z.0000000001401

	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
发表期刊	MATERIALS RESEARCH INNOVATIONS
ISSN	1432-8917
卷号	19 页码:S185-S190
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.
关键词	Magnesium oxychloride cement Concrete Compression strength Micro-mechanism
DOI	10.1179/1432891715Z.0000000001401
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of Gansu[1310RJZA051]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000354957900040
出版者	MANEY PUBLISHING
EI入藏号	20153701269246
EI主题词	Magnesium compounds
EI分类号	412 Concrete - 412.1 Cement - 531.2 Metallography
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/34088
专题	兰州理工大学文学院
通讯作者	Shi, Y. Y.
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
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
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.