EFFECT OF POLYPROPYLENE AND STEEL FIBRES ON COMPRESSIVE STRENGTH OF CONCRETE

Abstract

Concrete is the most widely used construction material due to its inherent properties. In recent years, researchers have focused to reduce the brittleness of concrete. One way of improving the ductile behaviour of concrete is the addition of fibres to the concrete. In this study, the strength properties of Hybrid fibre reinforced concrete (HFRC) have been presented. The workability and compressive strength are studied for different proportions HFRC like 0%, 0.5%, 1.0%, 1.5%, and 2.0% by volume of concrete and in each proportion the polypropylene fibres (ppf) and steel fibres (stf) are added in the ratio of 100:0, 75:25, 50:50 to get hybrid fibres. It is found that the workability and strength reduced due to increase of polypropylene fibre content.