Research on Curing Water Demand of Cementing Material System Based on Hydration Characteristics
The performance of cover concrete is acknowledged as a major factor governing the degradation of concrete structures. Curing plays a vital role in the development of concrete durability. The effects of different water-binder ratios and mineral admixtures on the curing water demand of concrete were s...
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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/22/7098 |
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| author | Wang Yao Baolin Guo Zhenyu Yang Xingxing Yang Yongzhi Guo Fangli Zhao Baomin Wang |
| author_facet | Wang Yao Baolin Guo Zhenyu Yang Xingxing Yang Yongzhi Guo Fangli Zhao Baomin Wang |
| author_sort | Wang Yao |
| collection | DOAJ |
| description | The performance of cover concrete is acknowledged as a major factor governing the degradation of concrete structures. Curing plays a vital role in the development of concrete durability. The effects of different water-binder ratios and mineral admixtures on the curing water demand of concrete were studied by the surface water absorption test. Combined with the characteristics of the hydration heat and chemically bound water of the composition cementing material system, the law of variation for curing water demand was analyzed. The results show that the addition of mineral admixtures can reduce the early hydration rate and hydration exothermic characteristics, and the hydration degree decreases with the increase of mineral admixtures. Due to the filling effect and active effect, the addition of fly ash (FA) and ground granulated blast slag (GGBS) reduces the curing water demand. The curing water demand of cover concrete decreases with the increase of mineral admixture content, and the curing water demand of pure water is the maximum and that of mix FA and GGBS is the minimum. Moreover, there is a strong correlation between the cumulative curing water demand and the chemically bound water content, indicating that the power of water migration mainly comes from the hydration activity of the cementing material system. The results provide a theoretical basis for the fine control of a concrete curing system. |
| first_indexed | 2024-03-10T05:19:16Z |
| format | Article |
| id | doaj.art-e5c1b51f085c461e8884160394cae2c0 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T05:19:16Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-e5c1b51f085c461e8884160394cae2c02023-11-23T00:13:39ZengMDPI AGMaterials1996-19442021-11-011422709810.3390/ma14227098Research on Curing Water Demand of Cementing Material System Based on Hydration CharacteristicsWang Yao0Baolin Guo1Zhenyu Yang2Xingxing Yang3Yongzhi Guo4Fangli Zhao5Baomin Wang6Shandong Hi-Speed Company Limited, Jinan 250014, ChinaSchool of Civil Engineering, Dalian University of Technology, Dalian 116000, ChinaShandong Hi-Speed Company Limited, Jinan 250014, ChinaSchool of Civil Engineering, Dalian University of Technology, Dalian 116000, ChinaTransportation Research Institute of Shandong Province, Jinan 250100, ChinaSchool of Civil Engineering, Dalian University of Technology, Dalian 116000, ChinaSchool of Civil Engineering, Dalian University of Technology, Dalian 116000, ChinaThe performance of cover concrete is acknowledged as a major factor governing the degradation of concrete structures. Curing plays a vital role in the development of concrete durability. The effects of different water-binder ratios and mineral admixtures on the curing water demand of concrete were studied by the surface water absorption test. Combined with the characteristics of the hydration heat and chemically bound water of the composition cementing material system, the law of variation for curing water demand was analyzed. The results show that the addition of mineral admixtures can reduce the early hydration rate and hydration exothermic characteristics, and the hydration degree decreases with the increase of mineral admixtures. Due to the filling effect and active effect, the addition of fly ash (FA) and ground granulated blast slag (GGBS) reduces the curing water demand. The curing water demand of cover concrete decreases with the increase of mineral admixture content, and the curing water demand of pure water is the maximum and that of mix FA and GGBS is the minimum. Moreover, there is a strong correlation between the cumulative curing water demand and the chemically bound water content, indicating that the power of water migration mainly comes from the hydration activity of the cementing material system. The results provide a theoretical basis for the fine control of a concrete curing system.https://www.mdpi.com/1996-1944/14/22/7098curing water demandwater-binder ratiomineral admixturehydration degree |
| spellingShingle | Wang Yao Baolin Guo Zhenyu Yang Xingxing Yang Yongzhi Guo Fangli Zhao Baomin Wang Research on Curing Water Demand of Cementing Material System Based on Hydration Characteristics Materials curing water demand water-binder ratio mineral admixture hydration degree |
| title | Research on Curing Water Demand of Cementing Material System Based on Hydration Characteristics |
| title_full | Research on Curing Water Demand of Cementing Material System Based on Hydration Characteristics |
| title_fullStr | Research on Curing Water Demand of Cementing Material System Based on Hydration Characteristics |
| title_full_unstemmed | Research on Curing Water Demand of Cementing Material System Based on Hydration Characteristics |
| title_short | Research on Curing Water Demand of Cementing Material System Based on Hydration Characteristics |
| title_sort | research on curing water demand of cementing material system based on hydration characteristics |
| topic | curing water demand water-binder ratio mineral admixture hydration degree |
| url | https://www.mdpi.com/1996-1944/14/22/7098 |
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