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

作者：Ma, Jian; Bian, Liang; Zhang, Jie; Zhao, Kai; Yao, Huayan; Zhang, Yongliang^*

来源：Advances in Concrete Construction, 2023, 16(2): 119-126.

DOI：10.12989/acc.2023.16.2.119

• anti-penetration
• mechanical performance
• self-compacting
• steel fiber

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.

• 单位
  中国科学院; 江苏科技大学; 武汉大学