干旱区生态环境知识资源中心(Arid): Characterizing properties of magnesium oxychloride cement concrete pavement

Arid

DOI	10.1007/s11771-019-4263-8
	Characterizing properties of magnesium oxychloride cement concrete pavement
	Zheng Wei-xin; Xiao Xue-ying; Chang Cheng-gong; Dong Jin-mei; Wen Jing; Huang Qing; Zhou Yuan; Li Ying
通讯作者	Zhou, Y ; Li, Y (corresponding author), Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China. ; Zhou, Y ; Li, Y (corresponding author), Key Lab Salt Lake Resources Chem Qinghai Prov, Xining 810008, Peoples R China.
来源期刊	JOURNAL OF CENTRAL SOUTH UNIVERSITY
ISSN	2095-2899
EISSN	2227-5223
出版年	2019
卷号	26 期号:12 页码:3410-3419
英文摘要	The performance of magnesium oxychloride cement concrete (MOCC) in road engineering in the arid region in northwest China was investigated over a two-year period. Two categories of MOCC pavement, light-burnt magnesia concrete road (Road-L) and dolomite concrete road (Road-D), were prepared with light-burnt magnesia and a mixture of light-burnt magnesia and caustic dolomite (1:3 by mass), respectively. Variations in the properties of the MOCC pavement, such as compressive and flexural strength, mineralogical phase, and microstructure, after being exposed to two rainy seasons in the field were monitored. The compressive strength of the cored samples were conducted after being aged for 28 d, and the compressive and flexural strength were tested at ages of 1, 2, 3, 28, 90, 180, 270, 360 and 720 d. The mineralogical phase and microstructure of the pavement were also analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results demonstrate that MOCC pavement obtained desirable compressive and flexural strengths after curing for 3 d for Road-L and 28 d for Road-D. Both of the compressive and flexural strength of Road-L and Road-D decreased slightly after experiencing two rainy seasons, with the major hydration products being 5Mg(OH)(2)center dot MgCl2 center dot 8H(2)O (Phase 5) and 3Mg(OH)(2)center dot MgCl2 center dot 8H(2)O (Phase 3). The decomposition of Phase 5 is mainly responsible for reducing the mechanical strength of the MOCC pavement.
英文关键词	magnesium oxychloride cement concrete (MOCC) pavement mechanical strength microstructure
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000511959000017
WOS关键词	PULVERIZED FUEL ASH ; WATER RESISTANCE ; MECHANICAL-PROPERTIES ; MOLAR RATIOS ; PHASES
WOS类目	Metallurgy & Metallurgical Engineering
WOS研究方向	Metallurgy & Metallurgical Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369690
作者单位	[Zheng Wei-xin; Xiao Xue-ying; Chang Cheng-gong; Dong Jin-mei; Wen Jing; Huang Qing; Zhou Yuan; Li Ying] Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China; [Zheng Wei-xin; Xiao Xue-ying; Chang Cheng-gong; Dong Jin-mei; Wen Jing; Huang Qing; Zhou Yuan; Li Ying] Key Lab Salt Lake Resources Chem Qinghai Prov, Xining 810008, Peoples R China; [Zheng Wei-xin; Huang Qing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zheng Wei-xin,Xiao Xue-ying,Chang Cheng-gong,et al. Characterizing properties of magnesium oxychloride cement concrete pavement[J],2019,26(12):3410-3419.
APA	Zheng Wei-xin.,Xiao Xue-ying.,Chang Cheng-gong.,Dong Jin-mei.,Wen Jing.,...&Li Ying.(2019).Characterizing properties of magnesium oxychloride cement concrete pavement.JOURNAL OF CENTRAL SOUTH UNIVERSITY,26(12),3410-3419.
MLA	Zheng Wei-xin,et al."Characterizing properties of magnesium oxychloride cement concrete pavement".JOURNAL OF CENTRAL SOUTH UNIVERSITY 26.12(2019):3410-3419.