LOW COST CEMENT CONCRETE PAVEMENT

Abstract

Energy consumption and generation is increasing day by day due to rapid industrialization and urbanization.
In this study pond ash is utilized as a partial substitute of cement and waste foundry sand is utilized as a partial substitute of
fine aggregate in concrete. The pond ash is added in concrete by partially replacing 20%, 30% and 40% of cement and
foundry sand is added in concrete by partially replacing 30%, 40% and 50% of fine aggregate to determine the strength. The
casting of cubes is done to determine the compressive strengths respectively for 7 and 28 days of curing. It was observed that
as the replacement of foundry sand increases there was increase in compressive strength and curing time. The results
obtained by this experimental study were for 30% replacement of natural sand by foundry sand and 20% replacement of
cement by pond ash the compressive strength observed were 23.45 MPa and 39.40 MPa for 7 and 28 days respectively.