Abstract—This project presents the experimental investigations carried out to study the effect of use of bottom ash (the coarser material, which falls into furnace bottom in modern large thermal power plants and constitute about 20% of total ash content of the coal fed in the boilers) as a replacement of fine aggregates. Concrete technology can be improved based on three criteria such as durability, environmental friendliness for the future of concrete industry, cost of materials and construction. The solution for this problem is to use or utilize industrial by-products or solid wastes in producing concrete such as Bottom Ash (BA), Fly Ash (FA), slag, waste glass, silica fume, etc. The various strength properties of the concrete consists of compressive strength, flexural strength and splitting tensile strength. The strength development for various percentages (0-50%) replacement of fine aggregates with bottom ash can easily be equated to the strength development of normal concrete at various ages. Bottom ash is usually described as heterogeneous particles consisting of magnetic and paramagnetic metals, glass, synthetic and natural ceramics, minerals and unburned materials. Reduction in negative effects on economic and environmental problems of concrete industry can be achieved by the use of these concrete technologies to old conventional methods.