Performance of Concrete with Partial Replacement of Industrial By-Products as Fine Aggregate
This paper investigated four different concrete mixes of M30 grade prepared using M-sand, Copper slag, Bottom ash, and Steel slag which are industrial by-products that are to be used as partial replacements of fine aggregate in concrete. The replacements of industrial by-products are varied from 10%, 20%, 30%, 40%, and 50%. Industrial waste materials of environmental risks and landfill disposal can be utilized in fine aggregate and concrete applications. Partial replacement of fine aggregate in engineering projects reduces the construction cost and ecological benefits. The property of concrete in fresh state workability is also studied in the investigation. The amount of super plasticizer was adjusted in each concrete mix to maintain the constant workability in the range of 50-75mm. The results showed that the replacements of fine aggregate in concrete with 50% M-sand, 30% Copper slag, 20% Bottom ash, and 20% Steel slag had the optimum compressive strength at 28 days curing period compared to the conventional concrete.