The Effect of Steel Fiber Length-to-Diameter Ratio and Dosing on the Mechanistic Characteristics of Concrete

Abstract

In this paper, the effects of three kinds of steel fibers with different aspect ratios on the slump, compressive intensity, and splitting tensile strength of concrete were studied. The results show that the slump for the steel fiber-based polished concrete reduces with the amount of admixture of steel foundation. The slump of concrete with steel fibers of larger length and diameter is reduced at the same volume of admixture. The compressive intensity and the cleavage intensity of the concrete mixed with steel fibers are increased to different degrees than the vegetal one. Among them, the average decompressive force is increased by nearly 15%, and the cleavage tensile strength is significantly increased. It is indicated that the cracking characteristics of the steel fiber concrete have also been improved, and the toughness of the concrete has been enhanced.