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Experimental investigation on Self-Curing Self-Compacting Concrete by Replacing Natural Sand by M-sand and Coarse aggregates By Light Weight Aggregate for M-40 Grade Concrete

In recent years, self-compacting concrete (SCC) has gained wide use for placement in congested reinforced concrete structures with difficult casting conditions. For such applications, the fresh concrete must possess high fluidity and good cohesiveness. In this present study, the effect of replacing the cement, fine aggregate and coarse aggregate by constant replacement of silica fume, Manufactured sand (JSW) replacement of 0%, 10%, 20%, 30%, 40% and light weight aggregate replacement of 10%, 15%, for internal curing respectively and their combinations of various proportions on the properties of different mixes of M40 grade has been compared with normal self compacting concrete by conventional curing method. In this study fresh property and hardened properties of the different mixes of concrete were determined. From the present study the test result showed that for fresh concrete all the mixes satisfies the EFNORC standard values. For harden concrete both compressive strength and split tensile strength test the M9 (30%relpacement FA and15% LWA) M4 (30% replacement FA and10% LWA) by internally curried concrete at ambient room temperature mixes gave highest values than the normal concrete by conventionally curing method.