EXPERIMENTAL INVESTIGATION ON THE PROPERTIES OF NANO-SILICA CONCRETE

This paper presents the strength and durability properties of M20 and M25 grades of concrete prepared using Nano-Silica. The influence of Nano-Silica on various properties of concrete is obtained by replacing the cement with various percentages of Nano-Silica, i.e., 3%, 4.5% and 6% respectively. Compressive strength, tensile strength, flexural strength, modulus of elasticity and rap id chloride permeability tests were conducted on specimens prepared using Nano-Silica concrete. The tested results indicate that the replacement of cement with Nano-Silica influences the strength and permeability properties of concrete. The replacement of cement with 3% Nano-Silica results in higher strength and reduction in the permeability than the controlled concrete. The replacement of cement with Nano-Silica more than 3% results in the reduction of various properties of Nano-Silica concrete.