Advances in concrete construction

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Experimental investigation of steel fiber effects on anti-penetration performance of self-compacting concrete

  • Jian Ma (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China) ;
  • Liang Bian (Naval Architecture and Civil Engineering, Jiangsu University of Science and Technology) ;
  • Jie Zhang (Naval Architecture and Civil Engineering, Jiangsu University of Science and Technology) ;
  • Kai Zhao (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China) ;
  • Huayan Yao (School of Civil and Hydraulic engineering, Hefei University of Technology) ;
  • Yongliang Zhang (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China)
  • Received : 2021.06.11
  • Accepted : 2023.11.04
  • Published : 2023.08.25
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Abstract

Steel fiber reinforced self-compacting concrete (SFRSCC) has good workability such as high flowability and good cohesiveness. The workability, compressive strength, splitting tensile strength, and anti-penetration characteristics of three kinds of SFRSCC were investigated in this paper. The fraction of steel fibers of the SFRSCC is 0.5%, 1.5% and 2.0% respectively. The results of the static tests show that the splitting tensile strength increases with the increase of fraction of steel fibers, while the compressive strength of 1.5% SFRSCC is lowest. It is demonstrated that the anti-penetration ability of 1.5% SFRSCC subjected to a velocity projectile (200-500 m/s) is better than 0.5% and 2.0% SFRSCC according to the experimental results. Considering the steel fiber effects, the existing formula is revised to predict penetration depth, and it is revealed that the revised predicted depth of penetration is in good agreement with the experimental results. The conclusion of this paper is helpful to the experimental investigations and engineering application.

Keywords

Acknowledgement

This work is supported by the National Natural Science Foundation of China (No. 12102428, No. 11502099, No. 11802001 and No. 11472008), the Fundamental Research Funds for the Central Universities (WK2090000019), Open Research Fund Program of State Key Laboratory of Water Resources and Hydropower Engineering Science (2018SGG02). Suzhou science and technology Bureau (SS2019018) and Zhangjiagang science and technology Bureau (ZKS2001). The authors declare that they have no conflict of interest.

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