Amulya.P , Nandhini.B

Abstract

This experimental study describes the properties of Hybrid Fibre Reinforced concrete (HFRC). HFRC is prepared by adding any two different types of fibres to the conventional concrete to make it a composite mixture and that derives its individual benefits from each of the added fibre and exhibits significant response. The fibres which are used in the present experimental work is Round crimped steel fibres and polypropylene fibres. Here the polypropylene fibres helps in resists initial cracks and shrinkage and steel fibres helps in increase the strength of concrete In present study M20 grade of concrete prepared according to the IS 10262:2009. Steel fiber and polypropylene fibres are used as Hybrid fibres. They are used in different proportions as 0.20%, 0.40%, 0.60%, 0.80% and 1% in this study. Specimens are cured for 28 days and tested in the lab for Compressive strength, Split Tensile strength and Flexural strength. From the present study, the strength parameter increases with