Tensile strength of steel fiber reinforced concrete

Studies have shown that the addition of steel fibers in a concrete matrix improves all the mechanical properties of concrete, especially tensile strength, impact strength, and toughness. The resulting material possesses higher tensile strength, consolidated response and better ductility. Accordingly, this study moves toward deriving an expression that relates split cylinder tensile strength of fiber reinforced concrete to cylindrical compressive concrete strength and fiber reinforcement index, based on data gathered for a wide spectrum of concrete grades, ranging from 20 MPa to 102 MPa. Regression analysis was carried out on gathered data. Eventually a mathematical expression that predicted split cylinder tensile strength of steel fiber reinforced concrete was eventually derived. The predicted values fit well with experimental data.