journal article·2023-10-01

Investigation on water resistance of basic magnesium sulfate cement containing weak organic acids

Xun Xu, Bei Zhu, Tiancheng Lin, Yingjiang Li, Yongtao Sun, Bo Yu, Hailong Hu, Zongyue Hu, Qian Dong

Advances in Cement Research· Volume 35· Issue 10
Publisher page

Abstract

Magnesium oxysulfate cement has low strength and poor water resistance, so an additive is essential for the preparation of basic magnesium sulfate cement (BMSC). In this paper, the effects and the mechanisms of three organic weak acids on the water resistance in relation to flexural strength of BMSC are investigated. The results show that malic acid fails to ameliorate the water resistance in relation to flexural strength, but citric acid and tartaric acid are successful. The ionisation constant and molecular formulas of different weak organic acids can affect the performance, such as fluidity, strength and water resistance. Therefore, the effect of citric acid is better than tartaric acid, and the optimal dosage of citric acid is 1.0%.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Magnesium Oxide Properties and Applications · Multiferroics and related materials · Microwave Dielectric Ceramics Synthesis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Associate Professor, 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

Post-graduate student, School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, PR China

Professor, 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; College of Civil Engineering and Architecture, Guangxi University, Nanning, PR China (corresponding author: )

Lecturer, Analytical and Testing Center, Southwest University of Science and Technology, Mianyang, PR China

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