Performance of High Strength Concrete Prepared by Partially Replacing Fine Aggregate with Bottom Ash

There is a scarcity in availability of natural aggregates due to the rapid development in construction technology. Nowadays extraction of natural aggregates from river beds, lakes and other water bodies have resulted in huge environmental problems. The best way to overcome this problem is to find alternative aggregates for construction in place of conventional natural aggregates. In order to overcome these problems, bottom ash is used as a replacement to fine aggregate. The study was carried out to evaluate the suitability of utilizing bottom ash as a partial replacement to fine aggregate in high strength concrete (M60 grade). Experiments were conducted by replacing fine aggregate with bottom ash in varying percentages 0%, 5%, 10%, 15%, 20%, 25% and 30%. Mechanical properties such as compressive strength, splitting tensile strength and flexural strength were evaluated. Test results indicated that bottom ash is suitable for improving the mechanical properties of concrete.