Compressive strength of fly ash magnesium oxychloride cement containing granite wastes

Content Provider	Semantic Scholar
Author	Li, Yandong Yu, Hongfa Zheng, Lina Wen, Jing Wu, Chengyou Tan, Yongshan
Copyright Year	2013
Abstract	Abstract This paper presents the results of an experimental investigation on compressive strength of granite waste fly ash magnesium oxychloride cement (GFMOC). Various GFMOC specimens were prepared with 23°Be or 25°Be brine and different proportions of granite fragment (GF) or granite sludge (GS) ranging from 0% (for the control mixture) to 40% of magnesia weight. Compression tests were conducted at the age of 3, 7, and 28 days. The hydration products and paste microstructure were analyzed by XRD and SEM, respectively. The results demonstrated that the water absorption and filling role of the fine particles of granite waste in GFMOC slurry are favorable for 5 Mg(OH)2⋅MgCl2⋅8H2O (P5) and dense microstructure, respectively. The quantity ratio of P5 to Mg(OH)2 (MH) and microstructure are important factors responsible for the compressive strength of GFMOC. The incorporation of granite wastes as aggregate can increase the compressive strength of fly ash magnesium oxychloride cement (FMOC).
Starting Page	1
Ending Page	7
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1016/j.conbuildmat.2012.06.016
Volume Number	38
Alternate Webpage(s)	http://english.isl.cas.cn/rh/rp/201303/P020130304542979684650.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.conbuildmat.2012.06.016
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article