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Abstract

This paper presents a study on the effect of fibre content on the strength and ductility of hybrid fibre reinforced concrete beams having different fibre volume fractions was investigated. The hybridization of different types of fibres may play important roles in arresting cracks at various levels. Hybrid fibre reinforced concrete beams incorporated with 30% polyolefin and 70% basalt fibres with a total fibre volume fraction Vf ranged from 0.0 to 2.0% with 0.5 % interval. The study parameters of this investigation includes service load, yield and ultimate load, service load deflection, yield and ultimate load deflection, ductility, crack width and failure modes. The strength, deformation and ductility performance of hybrid fibre reinforced concrete beams was compared with that of reference beam. The test results indicate that addition of 1.5% by volume of hybrid fibres enhance their overall performances.