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Journal of Central South University

, Volume 18, Issue 5, pp 1677–1684 | Cite as

Combined effect of steel fibres and steel rebars on impact resistance of high performance concrete

  • Xiang-yu Chen (陈相宇)
  • Yi-ning Ding (丁一宁)Email author
  • C. Azevedo
Article

Abstract

The impact properties of normal concrete (NC) and reinforced concrete (RC) specimens, steel fibre reinforced concrete (SFRC) specimens and RC+SFRC specimens with different steel fibre dosages were investigated with the drop-weight impact test recommended by ACI Committee 544. The results indicate that the number of blows to final failure is greatly increased by addition of steel fibres. Moreover, the combination of steel fibres and steel rebars demonstrates a significant positive composite effect on the impact resistance, which results in the improvement in impact toughness of concrete specimens. In the view of variation of impact test results, the two-parameter Weibull distribution was adopted to analyze the experimental data. It is proved that the probabilistic distributions of the blows to first crack and to final failure of six types of samples approximately follow two-parameter Weibull distribution.

Key words

impact resistance high performance concrete fibre Weibull distribution 

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Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Xiang-yu Chen (陈相宇)
    • 1
    • 2
  • Yi-ning Ding (丁一宁)
    • 2
    Email author
  • C. Azevedo
    • 3
  1. 1.Shanghai Bekaert Ergang Co., LtdShanghaiChina
  2. 2.State Key Laboratory of Coastal and Offshore EngineeringDalian University of TechnologyDalianChina
  3. 3.Centre of MathematicsUniversity of MinhoBragaPortugal

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