Experimental Study to Investigate Effect of Glass Fibre on Mechanical Properties of Silica Fume Concrete

Silica fume can be used as partial replacement of cement which leads to low environmental impact and energy saving. The advantages like high strength, durability and reduction in cement production are obtained due to incorporation of silica fume. Further, the use of glass fibres in concrete is being broad in current time due to its advantages like reduction in permeability, increasing fatigue strength, improved durability and toughness. In this experiment, we have studied mechanical and durability properties of M20 grade concrete containing silica fume 5%, 10% and 15% as a partial replacement of cement with addition of 0%, 0.5% and 1% of glass fibers by weight of cement. Tests results indicated that inclusion of silica fume and glass fibre in concrete it enhanced the compressive strength, Split tensile strength, flexural strength, acid attack resistance. It also seen that maximum strength is obtained at 10% partial replacement by silica fume and 1% glass fibre content.