Experimental research for the effect of high temperature on the mechanical properties of steel fiber-reinforced concrete

In this study, compressive strength, modulus of elasticity and toughness values of fiber-concrete were given comparatively according to different fiber ratios, concrete age and varying temperature effects. Consequently, compressive strength, modulus of elasticity and toughness values of fiber-concrete substantially decreased by the effect of high temperature as it was expected. When it was examined the results with regard to percentage of steel fiber, samples of 1.0% fiber additive had specifically the lowest of compressive strength losses. Additionally in comparing results of compressive strength losses on high temperature effect were lower at 900 °C and 1000 °C than at 1100 °C and 1200 °C temperatures. Determined results of 1100 °C and 1200 °C temperatures were closed with each other. Namely compressive strength values reached the lowest value after 1100 °C.