Evaluation of Compressive Strength and Tensile Strength of Steel Fiber Reinforced Concrete.

Abstract

By adding steel fibers, concrete can overcome its noticeable brittleness and low tensile strength and strain capacity. The mechanical characteristics of concrete reinforced with high-strength steel fibers were examined in this study. The toughness index, compressive and splitting tensile strengths were among the characteristics. Steel fibers were introduced at 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0% volume fractions. At 2.5% volume fraction, the fiber-reinforced concrete's compressive strength peaked. The splitting tensile strength and of the fiber-reinforced concrete improved with increasing the improvements, respectively. The compressive index of the fiber-reinforced concrete improved with increasing the compressive strength. Strength models were established to predict the compressive and splitting tensile strengths of the fiber-reinforced concrete. The models give predictions matching the measurements.