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Abstract

Abstract
In this research an experimental study was conducted to explore the effect of high temperature on the some mechanical properties such as compressive strength and splitting tensile strength of concrete with added silica fume and reinforced with glass fiber and it as compared with normal concrete. Mixes were prepared by adding silica fume of (0%,5%,10%,15%,20%) by weight and glass fiber of (0%,0.75%,1%,1.5%,1.75%) by volume . Compressive strength and tensile strength of mortar with the same percentage of silica fume and glass fiber was also studied. The result shown increased concrete compressive strength with increased of silica fume until (15%) and decreased at (20%) for both cases with and without heat . Also results shown increased concrete compressive strength with increased of glass fiber until (1%) and decreased at (1.5%,1.75%) for both cases with and without heat.
Keywords :Compressive and Tensile strength, Glass fiber, High temperature, Silica fume

Keywords