Water Resistance of Basic Magnesium Sulfate Cement

被引：12
|
作者：
Wu Chengyou [1 ]
Zhang Huifang [2 ]
Zhang Wuyu [1 ]
Li Hui [1 ]
Xing Sainan [1 ]
Chen Wenhai [1 ]
机构：
[1] Qinghai Univ, Sch Civil Engn, Xining, Peoples R China
[2] Chinese Acad Sci, Qinghai Inst Salt Lake, Xining, Peoples R China
来源：
INTERNATIONAL SYMPOSIUM ON MATERIALS APPLICATION AND ENGINEERING (SMAE 2016) | 2016年 / 67卷
关键词：
REACTIVITY; RATIO;
D O I：
10.1051/matecconf/20166707008
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Water resistance of basic magnesium sulfate (BMS) cement has been studied in this paper. The solubility of main hydration of 5Mg(OH)(2)center dot MgSO4 center dot 7H(2)O in BMS cement has been analyzed by analyzing ions changes in 5Mg(OH)(2)center dot MgSO4 center dot 7H(2)O solution. Compressive strength and softening coefficient changes of BMS cement after immersing in water have been tested to evaluate water resistance of BMS cement. And crystal compositions and microstructure of BMS cement before and after immersing in water has been analyzed by XRD and SEM to study the mechanism. These results show that 5Mg(OH)(2)center dot MgSO4 center dot 7H(2)O possesses a low solubility at room temperature. Basic magnesium sulfate cement displayed an excellent water resistance based on additives in basic magnesium sulfate cement can inhibit the hydration of hard burnt MgO to sheet-like Mg(OH)(2) and reduce crystallization stress in BMS cement.
引用
收藏
页数：9
相关论文
共 50 条
  • [31] Effect of roughness on bonding performance between Portland cement concrete and magnesium phosphate cement concrete
    Zhang, Suhui
    Li, Qiuyi
    Yuan, Qiang
    Yang, Shangfu
    Dai, Xiaodi
    CONSTRUCTION AND BUILDING MATERIALS, 2022, 323
  • [32] Sulfate adjustment for cement with triisopropanolamine: Mechanism of early strength enhancement
    Huang, Hong
    Wang, Qiao
    Li, Xuerun
    Zhou, Hao
    Yang, Chang-hui
    Shen, Xiao-dong
    CONSTRUCTION AND BUILDING MATERIALS, 2018, 182 : 516 - 522
  • [33] Influence of fly ash on compressive strength and micro-characteristics of magnesium potassium phosphate cement mortars
    Xu, Biwan
    Ma, Hongyan
    Shao, Hongyu
    Li, Zongjin
    Lothenbach, Barbara
    CEMENT AND CONCRETE RESEARCH, 2017, 99 : 86 - 94
  • [34] Combined effect of cement kiln dust and calcined dolomite raw on the properties of performance magnesium phosphate cement
    Baghriche, M.
    Achour, S.
    Baghriche, O.
    CASE STUDIES IN CONSTRUCTION MATERIALS, 2020, 13 (13)
  • [35] Phase separation mechanism of high-magnesium nickel slag and its applicability as magnesium phosphate cement
    Sun, Zhigao
    Yang, Xingchun
    Wu, Yuan
    Xie, Han
    Lu, Xiaoyu
    Huang, Jianan
    Zhang, Dongliang
    Wang, Mitang
    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2023, 11 (03):
  • [36] Influence of calcined clay/limestone, sulfate and clinker proportions on cement performance
    Rodriguez, Claudia
    Tobon, Jorge, I
    CONSTRUCTION AND BUILDING MATERIALS, 2020, 251
  • [37] Leaching of magnesium potassium phosphate cement pastes under alkaline conditions
    Caselles, Laura Diaz
    Coumes, Celine Cau Dit
    Antonucci, Pascal
    Rousselet, Angelique
    Mesbah, Adel
    Montouillout, Valerie
    APPLIED GEOCHEMISTRY, 2024, 170
  • [38] Experimental research on magnesium phosphate cement mortar reinforced by glass fiber
    Fang, Yuan
    Chen, Bing
    Oderji, Sajjad Yousefi
    CONSTRUCTION AND BUILDING MATERIALS, 2018, 188 : 729 - 736
  • [39] Properties and reaction mechanism of magnesium phosphate cement modified by calcium lactate
    Li, Yue
    Wang, Qiuao
    Sun, Jia
    Lin, Hui
    Luo, Xiao
    CONSTRUCTION AND BUILDING MATERIALS, 2024, 419
  • [40] Influence of dipotassium hydrogen phosphate on properties of magnesium potassium phosphate cement
    Wang, Miaomiao
    Liang, Lirong
    Liu, Qing
    Liang, Xiaoxu
    Guo, Hongda
    Li, Zongjin
    Liang, Rui
    Sun, Guoxing
    CONSTRUCTION AND BUILDING MATERIALS, 2022, 320
12345