Effect of steel fiber volume fraction to the tensile splitting strength of concrete cylinder

Concrete is strong in compression but weak in tension. To improve the concrete strength and ductility under tension, embedded micro-cement reinforcement such as steel fiber can be used. In this paper, the effect of the volume fraction ratio to the tensile strength of concrete is investigated. The steel fiber volume fraction considered are 0%, 0.5%, 1%, 1.5%, and 2.0%. From the test result, a linear increased in concrete tensile strength as function of the steel fiber volume fraction was observed. The amount of the steel fiber volume fraction also affects the concrete workability. The fiber orientation in the concrete was also observed to capture its effect on tensile strength from the splitting cylinder test.