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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Autores principales:	Wang Yao, Baolin Guo, Zhenyu Yang, Xingxing Yang, Yongzhi Guo, Fangli Zhao, Baomin Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	curing water demand water-binder ratio mineral admixture hydration degree Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/e5c1b51f085c461e8884160394cae2c0
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spelling	oai:doaj.org-article:e5c1b51f085c461e8884160394cae2c02021-11-25T18:16:20ZResearch on Curing Water Demand of Cementing Material System Based on Hydration Characteristics10.3390/ma142270981996-1944https://doaj.org/article/e5c1b51f085c461e8884160394cae2c02021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7098https://doaj.org/toc/1996-1944The 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.Wang YaoBaolin GuoZhenyu YangXingxing YangYongzhi GuoFangli ZhaoBaomin WangMDPI AGarticlecuring water demandwater-binder ratiomineral admixturehydration degreeTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7098, p 7098 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	curing water demand water-binder ratio mineral admixture hydration degree Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	curing water demand water-binder ratio mineral admixture hydration degree Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 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
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.
format	article
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
title	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_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_sort	research on curing water demand of cementing material system based on hydration characteristics
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e5c1b51f085c461e8884160394cae2c0
work_keys_str_mv	AT wangyao researchoncuringwaterdemandofcementingmaterialsystembasedonhydrationcharacteristics AT baolinguo researchoncuringwaterdemandofcementingmaterialsystembasedonhydrationcharacteristics AT zhenyuyang researchoncuringwaterdemandofcementingmaterialsystembasedonhydrationcharacteristics AT xingxingyang researchoncuringwaterdemandofcementingmaterialsystembasedonhydrationcharacteristics AT yongzhiguo researchoncuringwaterdemandofcementingmaterialsystembasedonhydrationcharacteristics AT fanglizhao researchoncuringwaterdemandofcementingmaterialsystembasedonhydrationcharacteristics AT baominwang researchoncuringwaterdemandofcementingmaterialsystembasedonhydrationcharacteristics
_version_	1718411412293812224

Research on Curing Water Demand of Cementing Material System Based on Hydration Characteristics

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