期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 278, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2021.122390
关键词
High-volume fly ash; Degree of hydration; Pore size distribution; Surface fractal dimension; Pozzolanic reaction
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2020R1A2C2008926]
- Korea Agency for Infrastructure Technology Advancement (KAIA) - Ministry of Land, Infrastructure and Transport [20NANO-B156177-01]
- National Research Foundation of Korea [2020R1A2C2008926] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The study found that there is a correlation between the hydration degree of HVFA cement and pore structure, and as the FA replacement ratio increased, the degree of hydration of cement increased while the degree of reaction of FA decreased. Furthermore, the gel/space ratio of HVFA cement paste showed a strong correlation with compressive strength.
The hydration characteristics and microstructure of HVFA cement were investigated according to the FA replacement ratio and the correlation between the degree of hydration and pore structure was analyzed. As the FA replacement ratio increased, the degree of hydration of cement increased, but the degree of reaction of FA decreased. The gel/space ratio of the HVFA cement paste showed strong correlation with the compressive strength. As the FA replacement ratio increased, the surface fractal dimension decreased in the micro region. The surface fractal dimension in the micro region showed strong correlations with the compressive strength and gel/space ratio. (C) 2021 Elsevier Ltd. All rights reserved.
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