Effect of Silica Fume on High Strength High Volume Fly Ash Concrete

Use of cement for making concrete has increased many folds in recent years. Cement causes pollution. To partial replacement of cement. Uses of fly ash as replacement of cement upto approved in IS code books. Concrete having large volume of fly ash (usually above 50%) is termed as high volume fly ash volume fly ash concrete with silica fum admixture to produce high strength concrete. In this research work s of silica fume were used compression, split tensile and flexural t found to be 10%. The high volume fly ash concrete with silica fume has better durability and flexural strength