This paper manifests the performance of self-compacting concrete (SCC) together with the addition of nanosilica as supplementary cementitious material. For this study, nano-silica in different proportions of 1, 2 and 3% was used. The M40 grade of SCC with a total of four mixes inclusive
of control concrete was prepared. The fresh state workability of SCC was assessed by conducting the slump flow, L-box test, V-funnel test, Orimet and J-ring tests. Hardened concrete test like tensile strength was also carried out. The durability tests on permeability properties like water
absorption, porosity, sorptivity, rapid chloride penetration and sulfate resistance test were determined at the age of 7, 28, 90 and 180 days. The tensile strength showed 18.82% greater strength for 2% nano-silica compared to the control mix. The permeability tests exhibited a decrease from
378 coulombs to 99 coulombs and showed advancement in SCC with nano-silica. The scanning electron microscope study was conducted on SCC samples to determine the microstructural behavior of nano-silica. A dense matrix with better development of calcium silicate gel was observed for 2% nano-silica.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.