Magnesium potassium phosphate cement prepared by the byproduct of magnesium oxide after producing Li2CO3 from salt lakes

ISL OpenIR > 青海盐湖研究所知识仓储

	Magnesium potassium phosphate cement prepared by the byproduct of magnesium oxide after producing Li2CO3 from salt lakes
	Tan, Yongshan 1,2; Yu, Hongfa1,3 ; Li, Ying 1; Wu, Chengyou 1,2; Dong, Jinmei1 ; Wen, Jing 1
	2014-09-01
发表期刊	CERAMICS INTERNATIONAL
卷号	40 期号:8 页码:13543-13551
关键词	Boron-containing Magnesium Oxide Calcination Temperature Magnesium Potassium Phosphate Cement Repair Material
摘要	Developing new types of chemically bonded phosphate ceramic materials that are environment-friendly, inexpensive and energy-efficient, has become a central theme today. Therefore, in this study, magnesium potassium phosphate cement (MKPC) was prepared from boron-containing magnesium oxide (B-MgO), a byproduct of the production of Li2CO3 from salt lakes. The properties of B-MgO calcined at various temperatures were investigated by XRD, SEM, LSPA and SNAA. The MKPC specimens were prepared at various calcination temperatures (from 800 degrees C to 1400 degrees C) of B-MgO and with various molar ratios of B-MgO to KH2PO4 or KDP (MIP) ranging from 3 to 6. Compression tests were conducted at various curing ages from 3 h to 28 d. The hydration products and microstructure of the specimens were analyzed by XRD and SEM, respectively. The experimental results demonstrated that the properties of B-MgO, such as the specific surface area, the deformation ratio and the total pore volume decreased with increasing calcination temperature. In addition, the early compressive strength of MKPC specimens decreased with increasing calcination temperature of B-MgO, and the long-term compressive strengths of MPC mortar remained constant with increasing calcination temperature of B-MgO. These results also indicated that cement with a high MIP ratio could have a high early strength. The MKPC specimens prepared by B-MgO calcined at 1000 degrees C and a MIP ratio of 6 exhibited a compressive strength of 35.6 MPa at 3 h, which met the mechanical property requirement of quick-repair materials. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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/363002/5722
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与化学实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Nanjing Univ Aeronaut & Astronaut, Dept Civil Engn, Nanjing 210016, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Tan, Yongshan,Yu, Hongfa,Li, Ying,et al. Magnesium potassium phosphate cement prepared by the byproduct of magnesium oxide after producing Li2CO3 from salt lakes[J]. CERAMICS INTERNATIONAL,2014,40(8):13543-13551.
APA	Tan, Yongshan,Yu, Hongfa,Li, Ying,Wu, Chengyou,Dong, Jinmei,&Wen, Jing.(2014).Magnesium potassium phosphate cement prepared by the byproduct of magnesium oxide after producing Li2CO3 from salt lakes.CERAMICS INTERNATIONAL,40(8),13543-13551.
MLA	Tan, Yongshan,et al."Magnesium potassium phosphate cement prepared by the byproduct of magnesium oxide after producing Li2CO3 from salt lakes".CERAMICS INTERNATIONAL 40.8(2014):13543-13551.