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Influence of Restraint on Surface Damage of Concrete Under Single-Side Salt Freezing and Thawing
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Zhihao GAO, Ling WANG, Xia ZHAO
Journal of the Chinese Ceramic Society | 2021, 49(11) : 2494 - 2501
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Journal of the Chinese Ceramic Society | 2021, 49(11): 2494-2501
• Research Article •
Influence of Restraint on Surface Damage of Concrete Under Single-Side Salt Freezing and Thawing
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Zhihao GAO, Ling WANG, Xia ZHAO
Affiliations
  • The State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024, China

    • GAO Zhihao (1992-), male, Doctoral candidate. E-mail:

About Author:

GAO Zhihao (1992-), male, Doctoral candidate. E-mail:

Published: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20210142
Outline
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The effect of restraint (i.e., expansion restraint and shrinkage restraint) on the surface damage of single-side salt freezing and thawing (SSFT) of concrete and its mechanism were investigated. After every four SSFT cycles and the strain during the cooling phase of the first SSFT cycle, the surface scaling was measured on the restrained concrete with a water-cement ratio of 0.40, and the tensile stress in the ice on the concrete surface was calculated. The results show that the surface scaling of restrained concrete is greater than that of free concrete, and it increases with the increase of the expansion restraint stress, but has little relationship with the shrinkage restraint stress. Compared to the free concrete, the tensile stress in the ice on the restrained concrete's surface is greater, and it is influenced by the expansion restraint stress positively. The results calculated based on the theory of "glue-spall" indicate that the expansion restrains cause the ice to crack more easily and more serious surface damage to concrete under the ice.

restraint concrete  /  single-side freezing and thawing  /  surface damage  /  surface scaling  /  apparent thermal expansion coefficient
高志浩, 王玲, 赵霞. 约束对单面盐冻混凝土表面损伤的影响及机理. 硅酸盐学报, 2021 , 49 (11) : 2494 -2501 . DOI: 10.14062/j.issn.0454-5648.20210142
Zhihao GAO, Ling WANG, Xia ZHAO. Influence of Restraint on Surface Damage of Concrete Under Single-Side Salt Freezing and Thawing[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (11) : 2494 -2501 . DOI: 10.14062/j.issn.0454-5648.20210142
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Year 2021 volume 49 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20210142
  • Receive Date：2021-02-25
  • Online Date：2026-10-30
  • Published：2021-11-20
Article Data
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History
  • Received：2021-02-25
  • Revised：2021-05-16
Funding
Affiliations
    The State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024, China

Corresponding:

WANG Ling (1968-), female, Professor. E-mail:
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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