The effect of polypropylene fiber on mechanical properties of reactive powder concrete

Abstract

Reactive Powder Concrete (RPC) was known as concrete with very dense in microstructure and having high value in compressive strength due to the utilization of very fine materials. One of the weakness of RPC is very brittle. To improve the ductility could used polypropylene fiber. In this research, the various weight of the polypropylene fiber used were 0.4 kg, 0.6 kg, and 0.8 kg per cubic metre of concrete. From this study, RPC mixture with 0.8 kg polypropylene fiber yielded maximum value, e.g the compressive strength was 103.253 MPa, modulus of elasticity was 45.252 MPa, splitting tensile strength was 5.91 MPa, and flexural strength was 9.56 MPa.