Concrete is the most versatile construction material because it can be designed to withstand the harshest environments while taking on the most inspirational forms. Engineers are continually pushing the limits to improve its performance with the help of innovative chemical admixtures and supplementary cementitious materials. Nowadays, most concrete mixture contains supplementary cementitious material which forms part of the cementitious component. These materials are majority by products from other processes. The tests conducted on it shows a considerable increase in early-age compressive strength and a small increase in the overall compressive strength of concrete.The strength increase was observed with the increase in the percentage of nano silica. The FESEM micrographs support the results and show that the microstructure of the hardened concrete is improved on addition of nano silica.

Debika Rai,Vikas Kumar, "Effects on the Particular Shape of Concrete on Addition of Silica Fumes" International Journal of Advanced Multidisciplinary Research and Educational Development, V2(1): Page(378-385) Jan-Feb 2026. ISSN: 3107-6513. www.ijamred.com. Published by Scientific and Academic Research Publishing.