{"title":"Heat of hydration of Portland cement containing coal-derived char at different temperatures","authors":"Hua Yu, Prayush Jonchhe, Chooikim Lau, Kam Ng","doi":"10.1016/j.rinma.2024.100595","DOIUrl":null,"url":null,"abstract":"<div><p>The heat of hydration is fundamental in understanding the hydration mechanism of cementitious materials, and temperature can significantly affect the heat of hydration. A recent study has shown that coal-derived char can be used as a green additive for improving the engineering properties of conventional cement grout. However, the impact of temperature on heat of hydration of char-cement grout is currently unknown. In this study, the heat of hydration (with degree of hydration) of cement and char-cement grouts at 5, 23, and 35 °C are investigated. This study reveals that incorporating char into the cement grout enhances its degree of hydration at temperatures ranging from 5 to 35 °C, highlighting the potential advantages of using coal char in grouting applications, especially at low temperature.</p></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"23 ","pages":"Article 100595"},"PeriodicalIF":0.0000,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590048X24000694/pdfft?md5=f9199c0821ef7bd862f65a5f36e57147&pid=1-s2.0-S2590048X24000694-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Results in Materials","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2590048X24000694","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The heat of hydration is fundamental in understanding the hydration mechanism of cementitious materials, and temperature can significantly affect the heat of hydration. A recent study has shown that coal-derived char can be used as a green additive for improving the engineering properties of conventional cement grout. However, the impact of temperature on heat of hydration of char-cement grout is currently unknown. In this study, the heat of hydration (with degree of hydration) of cement and char-cement grouts at 5, 23, and 35 °C are investigated. This study reveals that incorporating char into the cement grout enhances its degree of hydration at temperatures ranging from 5 to 35 °C, highlighting the potential advantages of using coal char in grouting applications, especially at low temperature.
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