Expererimental Study with Sulphuric acid on Compressive Strength of Concrete using Waste Marble Powder as a Partial Replacement of Sand

Abstract

The disposal of Waste marble powder from the marble industry is one of the environmental problems worldwide today. As marble powder is a waste product, obtained during the process of sawing and shaping of marble by parent marble rock, so it contains heavy metals which makes the water unfit for use, so it cannot be disposed in the environment as it causes environmental pollution. Therefore, it has a great impact on human health as well as on nature. To control its effect we can use Waste marble powder as a replacement in fine aggregate in concrete. This study aims at investigating the effect of using Waste marble powder as a partial replacement of fine aggregate in the proportion of 0%, 5%, 10%, 15% and 20% and to study its Compressive Strength after curing it in Water and Sulphuric acid for a curing period of 14 days, 28 days and 56 days and to check the effect of concrete against acid rain. The concrete mix used was M35 grade. Results showed that, with the addition of Waste marble powder Compressive strength gradually increases upto certain limit and then it decrease when cured in water and Sulphuric acid. So, it can be used for economical structures as it has higher strength ,improved durability and good workability. Furthermore, the chemical reaction between the cubes and acid were seen, the colour of the cubes dipped in Sulphuric acid change to yellow at 56 days.This may be due to acidic reaction.