EXPERIMENTAL INVESTIGATION AND COMPARATIVE ANALYSIS OF NANO-SILICA INCORPORATION ON STRENGTH PROPERTIES OF CONCRETE

Environmental pollution is increasing due tomany reasons such as vehicles, industrialization and urbanization. Because of this the concrete loses its strength.Present study examines the strength performance of M70 grade concrete with the use of Silica Fume, Fly Ash and Nano Silica as partial replacement of cement. Because nano-silica looks so tiny, it may be used to make concrete, it denser alsoimprovedperformance of concrete. The former researchers already studies on Silica Fume, Fly Ash and Nano Silica as partial replacement of cement for 10%,15% and 3% respectively in the context ofM50 concrete only in that strength properties increase 10%, but decrease in workability 5%. In this present work research on workability, the mechanical qualities for M70 Grade concrete. The cement is partially replaced withfly ash, silica fume and Nano-silica ranging from 11%,10% and 0-4% at an interval of 1%respectively, are prepared and tested.Based on findings of tests, it was determined that combination of 11% fly ash, 10% silica fume and 3% nano silica in addition to cement.