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Reduction of carbon dioxide emission in to environment has become major challenge to the present scientists. One ton of cement consumption produces one ton of carbon dioxide which damage the climate. Replacement of cement with the industrial and natural bi-products (pozzolanic materials) such as Fly Ash (FA), Micro Silica(MS), Ground Granulated Blast furnace Slag (GGBS), Metakaolin (MK), Rice Husk Ash (RHA) etc., is the only substitute in reducing the consumption of cement and for producing High Strength Concrete (HSC) in the concrete construction industry. Due to the exposure of civil engineering structures to elevated temperatures as in the case of buildings, bridges, tunnels, off shore and nuclear reactors which causes lot of damage to the structures, human and economic losses and these situations necessitate the use of appropriate fire resistant materials and development of designs for construction industry. The investigations were made on the mechanical properties of concrete viz., residual compressive strength of Ternary Blended Concrete (TBC) prepared by replacing the Ordinary Portland Cement (OPC) with10%, 20%, 30% of fly ash and 10% of micro silica at different temperatures from 100 C to 800C in addition to ambient temperatures and to arrive at the optimum proportions of various constituents which give higher compressive strength.

Study on the Effect of Elevated Temperatures on Residual Compressive Strength of Ternary Blended Concrete using Fly Ash and Micro Silica