REVIEW ON EFFECT OF ELEVATED TEMPERATURE AND SUDDEN COOLING ON STRENGTH PROPERTIES OF HYBRID FIBER REINFORCED CONCRETE

Abstract

Concrete loses its strength in case of accidental fires. The residual strength of normal strength concrete is of vital importance for ascertaining serviceability of buildings after the event of accidental fires. Strength loss in concrete is dependent on temperature of exposure, its duration and the way it gets cooled. Since last two decades the combination of different fibers and analysis of different cooling regimes had been studied to reduce the risk of damages and improve the residual strength of concrete after exposure of fire. The purpose of this study is to present a constructive critical review of the use of different fibers to make a fire resistant concrete