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Effect of Thickness of Ultra-High Performance Concrete on Its Axial Tensile Stress-Strain-Crack
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Qiongwei LIU1, 2, Xudong SHAO1, 2, Minghong QIU1, 2, Panpan LI1, 2, Liansheng LIU1, 2, Debao LYU1, 2
Journal of the Chinese Ceramic Society | 2020, 48(8) : 1168 - 1176
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Journal of the Chinese Ceramic Society | 2020, 48(8): 1168-1176
• Special Issue for Ultra-high Performance ConcreteⅠ •
Effect of Thickness of Ultra-High Performance Concrete on Its Axial Tensile Stress-Strain-Crack
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Qiongwei LIU1, 2, Xudong SHAO1, 2, Minghong QIU1, 2, Panpan LI1, 2, Liansheng LIU1, 2, Debao LYU1, 2
Affiliations
  • 1.College of Civil Engineering, Hunan University, Changsha 410082, China
  • 2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China

    • LIU Qiongwei (1996-), male, Master candidate. E-mail:

About Author:

LIU Qiongwei (1996-), male, Master candidate. E-mail:

Published: 2020-08-20 doi: 10.14062/j.issn.0454-5648.20200207
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Direct tensile tests were carried out on three types of ultra-high performance concrete (UHPC) specimens with different thicknesses of arc-shaped dog bone shape, and the relationship among axial tensile stress, strain, and crack of UHPC was analyzed. The results show that the tensile strength of UHPC increases slightly, the ability to limit crack development increases, the strain capacity decreases significantly, and the strain softening rate increases as the specimen thickness decreases from 100 mm to 30 mm. When the crack width is less than 0.2 mm, the post-crack stress of UHPC increases slightly. After the main crack forms, the crack development rate and the post-crack stress decline rate increase correspondingly. The tensile strain value is fitted from the main crack width, and it is indicated that the main crack development process of UHPC specimen be in reasonable agreement with the strain softening stage.

ultra-high performance concrete  /  direct tensile test  /  tensile strength  /  strain capacity  /  crack development
刘琼伟, 邵旭东, 邱明红, 李盼盼, 刘连胜, 吕德堡. 超高性能混凝土厚度对轴拉应力-应变-裂缝的影响. 硅酸盐学报, 2020 , 48 (8) : 1168 -1176 . DOI: 10.14062/j.issn.0454-5648.20200207
Qiongwei LIU, Xudong SHAO, Minghong QIU, Panpan LI, Liansheng LIU, Debao LYU. Effect of Thickness of Ultra-High Performance Concrete on Its Axial Tensile Stress-Strain-Crack[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (8) : 1168 -1176 . DOI: 10.14062/j.issn.0454-5648.20200207
Appendix
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Year 2020 volume 48 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20200207
  • Receive Date：2020-03-26
  • Online Date：2026-10-29
  • Published：2020-08-20
Article Data
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History
  • Received：2020-03-26
  • Revised：2020-04-01
Funding
Affiliations
    1.College of Civil Engineering, Hunan University, Changsha 410082, China
    2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China

Corresponding:

SHAO Xudong (1961-), male, Ph.D., Professor. E-mail:
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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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