Published Paper Details:

Nanotechnology is emerging as the most active research field which is widely being used in all the industries now days all over the world. Since concrete is most common material used in construction industry it is important to advance its strength and workability characteristics. By addition of Nano silica powder it has shown immense improvement in concrete characteristics like strength and workability. The use of Nano silica powder in concrete as a partial replacement of cement not only protects the environmental pollution by decreasing the waste material and CO2 emission but also save the resources and energy. Here we studied the effect of Nano-silica powder on various properties of concrete like compressive strength and split tensile strength by replacing it with cement in various percentages of Nano silica powder. Test samples S1, S2, S3, S4, S5, S6, S7 were prepared by using Nano-Silica powder as a partial replacement for cement in different ranges of 0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3% by weight of cement for M20 mix of ratio 1:1.5:3(Cement : sand : aggregate). Forty two concrete cubes and cylinders were casted on which different Laboratory tests were conducted to determine the Workability, Compaction Factor, Compressive Strength and Split Tensile Strength of Nano-silica concrete at the age of 7 and 28 days. Results designate that by using small amount of Nano silica powder increases the strength and workability properties of concrete in comparison with conventional concrete.