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Tensile Response of Strain-Hardening Ultra-High Performance Fiber Concrete Thin Layer Based on Fiber Orientation Distribution
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Xiujiang SHEN1, 2, Xudong SHAO1, Eugen BRÜHWILER2
Journal of the Chinese Ceramic Society | 2021, 49(11) : 2384 - 2392
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Journal of the Chinese Ceramic Society | 2021, 49(11): 2384-2392
• Special Issue on Ultra-HiHh HerHorHance Concrete Ⅱ •
Tensile Response of Strain-Hardening Ultra-High Performance Fiber Concrete Thin Layer Based on Fiber Orientation Distribution
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Xiujiang SHEN1, 2, Xudong SHAO1, Eugen BRÜHWILER2
Affiliations
  • 1.College of Civil Engineering, Hunan University, Changsha 410082, China
  • 2.Swiss Federal Institute of Technology Lausanne (EPFL), Station 18, CH-1015 Lausanne, Switzerland

    • SHEN Xiujiang (1990-), male, Ph. D., Assistant Researcher. E-mail:

About Author:

SHEN Xiujiang (1990-), male, Ph. D., Assistant Researcher. E-mail:

Published: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20210391
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The distribution of fiber orientation in strain-hardening ultrahigh performance concrete (SH-UHPC) thin slab was measured by a non-destructive test (NDT) method using a magnetic probe. Afterwards, the dumbbell specimens and rectangular plates were extracted orthotopically along the flowing direction of fresh mixture. The direct tensile test (DTT), 4-point bending test (4PBT) and inverse analysis were then conducted. The results indicate that the fibers tend to align perpendicularly toward the flow direction of fresh mixture in SH-UHPC thin layer under horizontal free-flow condition. The tensile response (inelastic part) of SH-UHPC ranges widely in thin slab, mainly due to the continuous change of fiber orientation along the flowing direction. Compared with 4PBT, DTT can directly, comprehensively, and accurately reflect the tensile response of SH-UHPC in thin slab. In addition, the correction factor for tensile strength (i.e., Kf=1.12) in thin slab is less than the recommended value in AFGC standard, and the correction factor for ultimate strain Kε in thin slab is 1.25 based on the experimental results and available data from the corresponding literature.

strain-hardening  /  ultra-high performance concrete  /  non-destructive test  /  direct tensile test  /  4-point bending test  /  fiber orientation
沈秀将, 邵旭东, Eugen BRÜHWILER. 基于纤维取向分布的应变硬化超高性能混凝土薄层抗拉性能. 硅酸盐学报, 2021 , 49 (11) : 2384 -2392 . DOI: 10.14062/j.issn.0454-5648.20210391
Xiujiang SHEN, Xudong SHAO, Eugen BRÜHWILER. Tensile Response of Strain-Hardening Ultra-High Performance Fiber Concrete Thin Layer Based on Fiber Orientation Distribution[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (11) : 2384 -2392 . DOI: 10.14062/j.issn.0454-5648.20210391
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Year 2021 volume 49 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20210391
  • Receive Date：2021-05-16
  • Online Date：2026-10-30
  • Published：2021-11-20
Article Data
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History
  • Received：2021-05-16
  • Revised：2021-07-23
Funding
Affiliations
    1.College of Civil Engineering, Hunan University, Changsha 410082, China
    2.Swiss Federal Institute of Technology Lausanne (EPFL), Station 18, CH-1015 Lausanne, Switzerland

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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