Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder
Limestone powder is increasingly used in producing high-performance concrete in the modern concrete industry. Limestone powder blended concrete has many advantages, such as increasing the early-age strength, reducing the setting time, improving the workability, and reducing the heat of hydration. Th...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/4090265 |
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| author | Xiao-Yong Wang |
| author_facet | Xiao-Yong Wang |
| author_sort | Xiao-Yong Wang |
| collection | DOAJ |
| description | Limestone powder is increasingly used in producing high-performance concrete in the modern concrete industry. Limestone powder blended concrete has many advantages, such as increasing the early-age strength, reducing the setting time, improving the workability, and reducing the heat of hydration. This study presents a kinetic model for modeling the hydration heat of limestone blended concrete. First, an improved hydration model is proposed which considers the dilution effect and nucleation effect due to limestone powder addition. A degree of hydration is calculated using this improved hydration model. Second, hydration heat is calculated using the degree of hydration. The effects of water to binder ratio and limestone replacement ratio on hydration heat are clarified. Third, the temperature history and temperature distribution of hardening limestone blended concrete are calculated by combining hydration model with finite element method. The analysis results generally agree with experimental results of high-performance concrete with various mixing proportions. |
| format | Article |
| id | doaj-art-16d718c91de748139c153dbba0b5d4b1 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-16d718c91de748139c153dbba0b5d4b12025-02-03T06:12:03ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/40902654090265Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone PowderXiao-Yong Wang0College of Engineering, Department of Architectural Engineering, Kangwon National University, Chuncheon-si 200701, Republic of KoreaLimestone powder is increasingly used in producing high-performance concrete in the modern concrete industry. Limestone powder blended concrete has many advantages, such as increasing the early-age strength, reducing the setting time, improving the workability, and reducing the heat of hydration. This study presents a kinetic model for modeling the hydration heat of limestone blended concrete. First, an improved hydration model is proposed which considers the dilution effect and nucleation effect due to limestone powder addition. A degree of hydration is calculated using this improved hydration model. Second, hydration heat is calculated using the degree of hydration. The effects of water to binder ratio and limestone replacement ratio on hydration heat are clarified. Third, the temperature history and temperature distribution of hardening limestone blended concrete are calculated by combining hydration model with finite element method. The analysis results generally agree with experimental results of high-performance concrete with various mixing proportions.http://dx.doi.org/10.1155/2017/4090265 |
| spellingShingle | Xiao-Yong Wang Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder Advances in Materials Science and Engineering |
| title | Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder |
| title_full | Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder |
| title_fullStr | Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder |
| title_full_unstemmed | Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder |
| title_short | Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder |
| title_sort | kinetic hydration heat modeling for high performance concrete containing limestone powder |
| url | http://dx.doi.org/10.1155/2017/4090265 |
| work_keys_str_mv | AT xiaoyongwang kinetichydrationheatmodelingforhighperformanceconcretecontaininglimestonepowder |