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author:

Chen, Bao-Chun (Chen, Bao-Chun.) [1] (Scholars:陈宝春) | Yang, Jian (Yang, Jian.) [2] | Wu, Xiang-Guo (Wu, Xiang-Guo.) [3] | Huang, Qing-Wei (Huang, Qing-Wei.) [4] (Scholars:黄卿维)

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EI PKU

Abstract:

Classification of material performance is a fundamental work for establishment of the structural design mythology. In order to explore reasonable performance classification for Ultra-high Performance Concrete (UHPC), three group tests were carried out with the steel fiber volume fraction as the main parameter, including the uniaxial tensile strength tests of UHPC with the equal compressive strength, the tensile performances tests of UHPC (initial cracking strength, tensile strength and peak tensile strain), and comparison tests of UHPC splitting tensile strength, bending tensile strength and uniaxial tensile strength. The experimental results show that there is no simple and linear relationship between UHPC tensile strength and compressive strength, UHPC should not be classified by single indicator of the compression strength, but should consider both compression and tension properties; with the increase of fiber fraction volume, the enhancement degree of the UHPC initial cracking strength, tensile strength and peak tensile strain are not the same, the tensile performances of UHPC should not be classified only by the tensile strength, but these three tensile properties indicators; there is no simple and linear relationship among the splitting tensile strength, bending tensile strength and the uniaxial tensile strength for UHPC, the tensile strength should be tested by the uniaxial tensile test. Based on the experimental study, the multi-indicators classification method considering fiber reinforcement is proposed. According to the statistical analysis results of a large number of literature data, the detailed classification and corresponding multi-indicators of UHPC mechanical properties are recommended. © 2021, Editorial Department of China Journal of Highway and Transport. All right reserved.

Keyword:

Bending strength Bending tests Compressive strength Cracks Polypropylenes Steel fibers Structural design Tensile strain Tensile strength Tensile testing Ultra-high performance concrete

Community:

  • [ 1 ] [Chen, Bao-Chun]College of Civil Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 2 ] [Chen, Bao-Chun]National Center for Joint International Research of Bridges Technology Innovation and Risk Mitigation, Fuzhou; 350108, China
  • [ 3 ] [Yang, Jian]College of Civil Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 4 ] [Yang, Jian]National Center for Joint International Research of Bridges Technology Innovation and Risk Mitigation, Fuzhou; 350108, China
  • [ 5 ] [Wu, Xiang-Guo]College of Civil Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 6 ] [Wu, Xiang-Guo]School of Civil Engineering, Harbin Institute of Technology, Harbin; 150090, China
  • [ 7 ] [Huang, Qing-Wei]College of Civil Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 8 ] [Huang, Qing-Wei]National Center for Joint International Research of Bridges Technology Innovation and Risk Mitigation, Fuzhou; 350108, China

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Source :

China Journal of Highway and Transport

ISSN: 1001-7372

CN: 61-1313/U

Year: 2021

Issue: 8

Volume: 34

Page: 23-34

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 17

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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