Study on the mixing ratio and basic properties of steel fiber high-strength concrete

steel fiber;  high-strength concrete;  Fit ratio;  Cement slurry content ρp;  steel fiber volume ratio ρf;  Basic performance

The design method of high concrete mix ratio of steel fiber was discussed. According to the characteristics and requirements of steel fiber high-strength concrete, three kinds of steel fibers (milled steel fiber MF, cut bow steel fiber BF, shear corrugated steel fiber SF) high-strength concrete were prepared, and the compressive test and elastic modulus test of cube and prism specimens were carried out, and the effects of cement slurry content ρp and steel fiber volume ratio ρf on the workability of mix and the basic mechanical properties of high-strength concrete were analyzed. The results show that the content of cement slurry and the volume rate of steel fiber are important factors affecting the workability and mechanical properties of high-strength concrete mixture, and the results obtained can provide useful references for further research.