Effect of Industrial Wastes on Mechanical Properties of Concrete with Partial Replacement on Cement and Fine Aggregate

Abstract

Concrete is the globally used construction material for various sustainable infrastructures. It is assure that for eco-friendly and sustainable development, several industrial wastes are being utilized in concrete as a alternative for either cement or fine aggregate. This study investigates the effect of using industrial wastes such as copper slag, steel slag and GGBS as a partial replacement for fine aggregate and cement. Initially fine aggregate was replaced by varying proportions (0%, 10%, 20%, 30%, 40%, 50%) of copper slag and steel slag separately. Then an experimental study was conducted on these varying mixes to reveal the compressive strength of the concrete. From the test results, optimum percentage of copper slag and steel slag was determined and optimum mixes were prepared by replacing 20% of cement with GGBS together with optimum replacement level of copper slag and steel slag on fine aggregate respectively. Tests on compressive strength, splitting tensile strength, flexural strength and Elastic modulus of concrete for the optimum mixes were determined and compared with the conventional concrete.