Basic magnesium sulfate cement (BMSC) is a kind of magnesium oxide (MgO)–magnesium sulfate (MgSO4)–water (H2O) modified ternary cementitious material prepared from light burned magnesia, magnesium sulfate heptahydrate, water and additives. The effects of α-magnesium oxide/magnesium sulfate ratio (MO/MS), water/magnesium sulfate ratio (W/MS), sand-to-binder ratio (s/b) and superplasticiser dosage (SPD) on the performance of BMSC mortar were studied for the first time in this work. The results showed that for, optimal 28-day flexural strength, α-MO/MS = 10:1, W/MS = 16:1, s/b = 0.8 and SPD = 0.3%. For optimal 28-day compressive strength, α-MO/MS = 8:1, W/MS = 14:1, s/b = 0.6 and SPD = 0.4%. For best water resistance, α-MO/MS = 12.5:1, W/MS = 14:1, s/b = 0.2 and SPD = 0.1%. Based on these results, the basic mix proportion ranges of BMSC mortar should be α-MO/MS = 8:1–12.5:1, W/MS = 14:1–16:1, s/b = 0.2–0.6 and SPD = 0.1–0.4%.
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1 October 2023
Research Article|
January 20 2023
Investigation of the performance of basic magnesium sulfate cement mortar
Xun Xu;
Xun Xu
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China; Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning, PR China; Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning, PR China
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Yingjiang Li;
Yingjiang Li
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China
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Yongtao Sun;
Yongtao Sun
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China
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Bo Yu;
Bo Yu
Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning, PR China; Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning, PR China; School of Civil Engineering and Architecture, Guangxi University, Nanning, PR China (corresponding author: gxuyubo@gxu.edu.cn)
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Hailong Hu;
Hailong Hu
Analytical and Testing Center, Southwest University of Science and Technology, Mianyang, PR China
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Dan Li;
Dan Li
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China
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Zongyue Hu;
Zongyue Hu
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China
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Shuang Wang;
Shuang Wang
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China
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Jie Meng;
Jie Meng
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China
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Bowen Yu
Bowen Yu
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China
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Publisher: Emerald Publishing
Received:
June 27 2022
Accepted:
January 13 2023
Online ISSN: 1751-7605
Print ISSN: 0951-7197
Emerald Publishing Limited: All rights reserved
2023
Advances in Cement Research (2023) 35 (10): 432–451.
Article history
Received:
June 27 2022
Accepted:
January 13 2023
Citation
Xu X, Li Y, Sun Y, Yu B, Hu H, Li D, Hu Z, Wang S, Meng J, Yu B (2023), "Investigation of the performance of basic magnesium sulfate cement mortar". Advances in Cement Research, Vol. 35 No. 10 pp. 432–451, doi: https://doi.org/10.1680/jadcr.22.00091
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