Experimental Study on Behaviour of Polypropylene and Crimped Steel Fiber in Concrete Beams

In this study, crimped steel and polypropylene fibers are used to improve flexural and shear performance of reinforced concrete. The purpose of this work is to present the results of a study carried out to characterize the structural behavior of FRC beams under shear loading, considering fibers of different materials (steel and polymeric). Further, the study aims to evaluate the ability of predicting the ultimate shear capacity of concrete beams. At the same time, it is verified whether the design methods for SFRC can be extrapolated to polypropylene fiber reinforced concrete (PFRC). In order to improve its flexural strength and brittleness, a technique of mixing short fibers (similar to that used in conventional concrete) will be introduced to the concrete. In phase-I, the various literatures are learnt and various tests of cement, fine aggregate and coarse aggregate are handled. In this work, the polypropylene and steel fibers at the volume fractions of (0.4%, 0.7%, and 1%) added to the concrete and flexural & shear performance of the FRSC is carried out according to ASTM C1609.