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YANG Song-lin, DIAO Bo. Mechanical properties of ultra-high performance steel fiber reinforced concrete[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 8-13. doi: 10.19818/j.cnki.1671-1637.2011.02.002
Citation: YANG Song-lin, DIAO Bo. Mechanical properties of ultra-high performance steel fiber reinforced concrete[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 8-13. doi: 10.19818/j.cnki.1671-1637.2011.02.002
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Mechanical properties of ultra-high performance steel fiber reinforced concrete

doi: 10.19818/j.cnki.1671-1637.2011.02.002
  • 1.

    China Architecture Design and Research Group, Beijing 100044, China

  • 2.

    School of Transportation Science and Engineering, Beihang University, Beijing 100191, China

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  • Author Bio:

    YANG Song-lin(1982-), male, engineer, PhD, +86-10-68302413, yangsl@cadg.cn

  • Received Date: 2010-11-27
  • Publish Date: 2011-04-25
    Abstract
  • Ultra-high performance fiber reinforced concretes (UHPFRC) with compressive strength over 100 MPa were confected by using steel fibers, such as kink end type, flat end type and wavy type. Doped fiber volume ratios were 1.0%, 2.0%, 2.5% and 3.0% respectively. The influences of steel fiber shapes and doped volume ratios on the fluidity, compressive strength, flexural strength, fracture energy and bending toughness of UHPFRC were researched through cube compressive tests and beam flexural tests. Experiment result shows that when doped fiber volume ratios are from 1.0% to 2.5%, UHPFRC with flat end steel fiber has the best flexural strength, fracture energy and bending toughness. When doped fiber volume ratio is 3.0%, UHPFRC with kink end type steel fiber has the best flexural strength, fracture energy and bending thoughness. When doped fiber volume ratio is 2.0%, UHPFRC with flat end type steel fiber has the best construction performance and mechanical performances. When doped fiber volume ratios are from 1.0% to 3.0%, the compressive strength of UHPFRC with wavy type steel fiber is highest than the, but its flexural strength and fracture energy are lowest.

     

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