Strength Parameters Analysis of Partial Replacement of Cement by GGBS and Fly-Ash and Sand by Copper Slag

Abstract

Nowadays very vast quantity of concrete is being used all over the world. Concrete is a mixture of cement, fine aggregate, coarse aggregate, and water. Fly ash, Copper slag, and GGBS are mechanical waste products in Coal, copper and iron industry respectively. Using this product, results in cost reduction of concrete and disposal solution of large waste products. In this review two combinations were taken and attempt was made to reduce usage of cement and sand content by saving cost of concrete and studied experimental behavior for strengths of M40 grade of concrete for combination of ground granulated blast furnace slag (GGBS) and Copper Slag (CS) and another combination of GGBS and Fly ash (FA). Experimental studies were performed on plain cement concrete and combination of GGBS and Copper Slag. Total 108 specimens were casted. In the first combination, four trial mixes were taken as maintaining GGBS 30% and varying Copper Slag by 10%, 20%, 30%, and 40% respectively. In second combination 4 trials were taken as maintaining fly ash 25% and varying GGBS by 40%, 50%, 60%, and 70%. A comparative analysis has been carried out for concrete in relation to Workability, Compression strength, Split Tensile strength and Flexural strength at 7,14,28 days with conventional concrete and two combinations. It was observed that replacement of cement by 30% GGBS and sand by 30% CS in combination 1 got maximum strength in all aspect than Conventional Concrete and combination 2.