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Effect of Steel Fiber on Elastic Modulus of Ultra-High-Performance Concrete
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Jian YANG, Baochun CHEN, Jiazhan SU
Journal of the Chinese Ceramic Society | 2020, 48(5) : 652 - 658
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Journal of the Chinese Ceramic Society | 2020, 48(5): 652-658
Effect of Steel Fiber on Elastic Modulus of Ultra-High-Performance Concrete
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Jian YANG, Baochun CHEN, Jiazhan SU
Affiliations
  • Technology Innovation and Risk Mitigation of Bridges, National Center for International Research, College of Civil Engineering, Fuzhou University, Fuzhou 350108, China

    • YANG Jian (1990-), male, Doctoral candidate. E-mail:

About Author:

YANG Jian (1990-), male, Doctoral candidate. E-mail:

Published: 2020-05-20 doi: 10.14062/j.issn.0454-5648.20190604
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Effects of aspect ratio and volume fraction of straight steel fiber on the modulus of elasticity (MOE), compressive strength, and flowability of ultra-high-performance concrete (UHPC) were investigated. The results show that the MOE and compressive strength of UHPC increase and the flowability of the fresh UHPC decreases with the increase of fiber volume and fiber aspect ratio. Steel fiber has both positive and negative effects on the MOE of UHPC. The positive effect of steel fiber is due to the high elastic modulus of steel fiber itself. The negative effect is caused by the decrease of the MOE of UHPC matrix due to the decrease of the flowability of fresh UHPC and the increase of the porosity and the inner defects after the fibers adding into the matrix. A semi-empirical formula was proposed for predicting the MOE of the UHPC based on the experimental data, comprehensively considering the positive and negative effects of fibers. It is indicated that the MOE of the UHPC could be strongly correlated to the compressive strength.

ultra-high-performance concrete  /  steel fiber  /  modulus of elasticity  /  compressive strength  /  estimation formula
杨简, 陈宝春, 苏家战. 钢纤维对超高性能混凝土弹性模量的影响. 硅酸盐学报, 2020 , 48 (5) : 652 -658 . DOI: 10.14062/j.issn.0454-5648.20190604
Jian YANG, Baochun CHEN, Jiazhan SU. Effect of Steel Fiber on Elastic Modulus of Ultra-High-Performance Concrete[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 652 -658 . DOI: 10.14062/j.issn.0454-5648.20190604
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Year 2020 volume 48 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20190604
  • Receive Date：2019-09-02
  • Online Date：2026-10-29
  • Published：2020-05-20
Article Data
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History
  • Received：2019-09-02
  • Revised：2019-10-11
Funding
Affiliations
    Technology Innovation and Risk Mitigation of Bridges, National Center for International Research, College of Civil Engineering, Fuzhou University, Fuzhou 350108, China

Corresponding:

CHEN Baochun (1958-), male, 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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