Waste Paper Sludge Ash and Crushed Rock Sand Based on Concrete with Smart Materials - A Review

Abstract: In the construction sector concrete is used 327 million metric tons in India during the year 2020 and it requires a large quantity of cement and aggregates. Cement producing industry is one of the carbon dioxide emitting sources besides deformation fuels and concrete is one of the largest consumes of natural resources materials. The cement industry produces about 7% of carbon dioxide emissions to the earth's atmosphere. As natural resources depleting due to excavation of river sand from natural resources is a serious problem to the environment. On the other side waste and by products from several industries are finding their way as alternative binding materials to prepare concrete. This paper presents the review of some research papers which uses locally available waste paper sludge ash and crushed rock sand replacing cement and fine aggregate in concrete.

Keywords: Crushed rock sand, Environment pollution, Paper sludge.