Utilization of Giad Steel Slag as Partial Replacement for Coarse Aggregates in Concrete

Abstract

This research paper focuses on the possibility of utilization of Giad electric arc furnace slag (GEAFS) as a partial replacement for coarse aggregates in concrete, without compromising on its workability and strength. The electric arc furnace slag is a waste product from the steel manufacturing which may be used as partial replacement of coarse aggregates in concrete. This paper presents an experimental study on fresh and hardened properties of concrete containing steel slag aggregates. Slump, as well as strength properties of concrete prepared with natural coarse aggregate, partially replaced by the GEAFS in different proportions varying from 25 %, 50 % and 75 %. The GEAFS concrete shows marginal decrease in slump for the further replacement. Compressive, split and Flexural strength of the GEAFS concrete have been increased for the GEAFS addition. Highest compressive, tensile and flexural strength have been achieved by the mix containing 50 % GEAFS coarse aggregates. Using of steel slag will result in decrease of waste landfilling, and improving environmental condition.