Mechanical properties of self-compacting concrete containing sandstone slurry

Abstract

India embraces wide variety of dimensional stones. It includes granite, marble, sandstone, limestone and slate. Amid all the states, Rajasthan is known as mineral majestic of India, with an abundance of important stones. Rajasthan produces more than 90% of sandstone of all over the country. The total quantity of mined out sandstone is 200.27 million tons per year, out of which 110.25 million tons are accounted as waste during various manufacturing and processing stages of sandstone. An experimental work has been conducted to manufacture self-compacting concrete (SCC) with dry sandstone slurry (DSS) and study the properties of SCC. Seven SCC mixes have been prepared with various percentages of sandstone slurry (i.e. 0, 5, 10, 15, 20, 25 and 30 percent) as partial replacement of pozzolana portland cement (PPC). Compressive, flexure and tensile strength of all SCC mixes up to 180 days curing age and abrasion resistance after 28 days curing age have been found out and presented in this paper. The conclusion of this study draws an idea about the use of SCC mixes made with DSS are in favor of using DSS up to 10% for reinforced cement concrete work and up to 20% for plain cement concrete work.