Experimental Study of Concrete Prepared by Eggshell Powder and Copper Slag

This paper discusses the work done on concrete by the replacement of cement with eggshell powder and fine aggregate replaced by copper slag. The fresh properties in terms of the slump and hardened properties in terms of flexural strength, split tensile strength, and compressive strength is been studied. It is seen in the study that replacement of cement can be done by eggshell powder up-to 15% but optimum strength can be taken at 10%. On the same hand fine aggregate can be replaced upto 40% by copper slag but optimum strength will be at 30%. As the replacement of eggshell powder increases than slump starts decreasing but in the case of coppers lag the slump starts increasing at its varying percentages. The gain is strength is achieved using eggshell powder and copper slag in combination.