EFFECT OF ELEVATED TEMPERATURE ON COMPRESSIVE STRENGTH OF SELF COMPACTING CONCRETE USING VISCOCRETE AND SILICA FUME

Self-Compacting Concrete (SCC) is defined as category of high performance concrete that has excellent deformability in the fresh state and high resistance to segregation, and can be placed and compacted under its self-weight without applying vibration. In this paper flow properties of SCC with different ratios of water to cement, viscocrete to cement and silica fume to cement were determined by experimental investigation. The flow properties such as filling ability, passing ability and segregation resistance were found using the Slump Flow, J-Ring and V-Funnel test setups respectively. Self-compacting concrete (SCC) may be used in buildings subjected to high temperatures during operation or in case of an accidental fire. The proper understanding of the effects of elevated temperatures on the properties of SCC is necessary. An attempt has been made to study the effect of elevated temperature on compressive strength of SCC specimens heated from 25ºC to 700ºC. The reductions in the compressive strength of SCC specimens at elevated temperature were found to be vary according to the proportions of mixing materials.