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Flexural Fatigue Properties of Ultra-High Performance Concrete at -10 ℃
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Zhi FANG1, 2, Qimu ZHU1, Shaokun LIU1, Xingyu TAN1
Journal of the Chinese Ceramic Society | 2022, 50(2) : 473 - 481
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Journal of the Chinese Ceramic Society | 2022, 50(2): 473-481
• Research Articles •
Flexural Fatigue Properties of Ultra-High Performance Concrete at -10 ℃
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Zhi FANG1, 2, Qimu ZHU1, Shaokun LIU1, Xingyu TAN1
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

    • FANG Zhi (1963-), male, Ph.D., Professor. E-mail:

About Author:

FANG Zhi (1963-), male, Ph.D., Professor. E-mail:

Published: 2022-02-20 doi: 10.14062/j.issn.0454-5648.20210441
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The fatigue properties of ultra-high performance concrete (UHPC) at 20 ℃ and -10 ℃ were investigated via flexural fatigue tests under different stress levels. The results show that, the degradation of UHPC flexural fatigue performance and the fatigue strength decrease under a cyclic load with the decrease of temperature due to the cold brittleness characteristics of steel fibers at the cracked section. Compared with the test results at 20 ℃, the fatigue strength of UHPC at -10 ℃ is decreased by 15.6%. Although the fatigue strength of the specimens at a low temperature is lower than that of the specimens at normal temperature, their fatigue deformation modulus ratios (En/E0) corresponding to their fatigue strengths are similar, which are 0.48. The residual strength of UHPC specimens undergoing 2 million cycles without flexural fatigue failure is close to the static strength under monotonic loading, at normal temperature or low temperature. Based on the results, a model of predicting the fatigue life of UHPC at 20 ℃ and -10 ℃ was proposed, and the predicted results could be used as reference in the practical application.

ultra-high performance concrete  /  low temperature  /  fatigue life  /  fatigue strength  /  fatigue deformation modulus
方志, 朱启木, 刘绍琨, 谭星宇. -10 ℃下超高性能混凝土的弯曲疲劳性能. 硅酸盐学报, 2022 , 50 (2) : 473 -481 . DOI: 10.14062/j.issn.0454-5648.20210441
Zhi FANG, Qimu ZHU, Shaokun LIU, Xingyu TAN. Flexural Fatigue Properties of Ultra-High Performance Concrete at -10 ℃[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (2) : 473 -481 . DOI: 10.14062/j.issn.0454-5648.20210441
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Year 2022 volume 50 Issue 2
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Article Info
doi: 10.14062/j.issn.0454-5648.20210441
  • Receive Date：2021-09-24
  • Online Date：2026-10-22
  • Published：2022-02-20
Article Data
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History
  • Received：2021-09-24
  • Revised：2021-11-01
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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
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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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