Xun Xu, Bei Zhu, Tiancheng Lin, Yingjiang Li, Yongtao Sun, B. Yu, Hai-long Hu, Zong-Hai Hu, Qian Dong
{"title":"Investigation on water-resistance of basic magnesium sulfate cement containing weak organic acids","authors":"Xun Xu, Bei Zhu, Tiancheng Lin, Yingjiang Li, Yongtao Sun, B. Yu, Hai-long Hu, Zong-Hai Hu, Qian Dong","doi":"10.1680/jadcr.22.00192","DOIUrl":null,"url":null,"abstract":"As magnesium oxysulphate cement featured feeble strength and water-resistance, the additive was essential for preparing basic magnesium sulfate cement (BMSC). In this paper, the effects and the mechanism of three organic weak acids on the water-resistance for the flexural strength of BMSC were investigated. The results showed that malic acid failed to ameliorate the water-resistance for the flexural strength, but citric acid and tartaric acid succeeded. The ionization constant and molecular formulas of different weak organic acids would affect the performance, such as the fluidity, strength as well as water-resistance. Therefore, the effect of citric acid was better than tartaric acid, and the optimal dosage of citric acid was 1.0%.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Cement Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jadcr.22.00192","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
引用次数: 1
Abstract
As magnesium oxysulphate cement featured feeble strength and water-resistance, the additive was essential for preparing basic magnesium sulfate cement (BMSC). In this paper, the effects and the mechanism of three organic weak acids on the water-resistance for the flexural strength of BMSC were investigated. The results showed that malic acid failed to ameliorate the water-resistance for the flexural strength, but citric acid and tartaric acid succeeded. The ionization constant and molecular formulas of different weak organic acids would affect the performance, such as the fluidity, strength as well as water-resistance. Therefore, the effect of citric acid was better than tartaric acid, and the optimal dosage of citric acid was 1.0%.
期刊介绍：
Advances in Cement Research highlights the scientific ideas and innovations within the cutting-edge cement manufacture industry. It is a global journal with a scope encompassing cement manufacture and materials, properties and durability of cementitious materials and systems, hydration, interaction of cement with other materials, analysis and testing, special cements and applications.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
