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ABSTRACT Fiber Reinforced Concrete can be defined as a composite material consisting of mixtures of cement, mortar or concrete and discontinuous, discrete, uniformly dispersed suitable fibers. . It contains short discrete fibers that are uniformly distributed and randomly oriented. In order to achieve the desired goal, different dosages of steel fiber (0.5%, 1%, 1.5% & 2%) in the concrete grade of M-40.According to the results of experimental study, it is concluded that with the addition of steel fibers, The concrete mix M2, M3 M4 and M-5 shows percentage increment in compressive strength by 4.86%, 9.34%, 11.64% and 18.76% at 7 days of curing period with respect to concrete mix M1. The compressive strength by CTM (destructive testing technique) is found to increase with increase in percentage of steel fibers in the conventional concrete. The concrete mix M2, M3 M4 and M-5 showed increment in compressive strength by 4.54%, 7.32%, 9.08% and 11.72% at 28 day of curing period with respect to concrete mix M1. Tensile strength of cylinder specimen is maximum at 2% of steel fibers which having strength of 3.18 and 4.69 Mpa after 14 and 28 days respectively. Percentage increase for 2% steel fiber of 14 and 28 days is 25.19% and 18.43% respectively.Maximum flexural strength after 28 days is 10.43 MPa. Percentage increase for 2% of steel fiber is 13.36% as comparison to M-1 mix so it can be analyse that this variation of steel fiber is good for flexural strength of concrete. This experimental study shows that the steel fibers improve the properties of the conventional concrete and it enhances the tensile strength of concrete. 1. INTRODUCTION