Effect of copper slag on properties and structure of cement and concrete

In this paper, the effects of using copper slag wastes on hydration, gelling properties, mechanical properties, pozzolanic activity and durability aspects of concrete are studied.. It has been found that copper slag have micro pozzolanic effect in the study. The concrete batches with copper slag addition presented greater mechanical and durability performance. The mechanism of copper slag powder in composite cementitious materials is filling effect, activity effect and acceleration effect. The filling effect of copper slag can make matrix denser and the accelerating effect can accelerate the early hydration. At the same time, the problems existed in the comprehensive utilization of copper slag have put forward, and the key research direction has been raised for the future study, and an entry point has been provided for future copper slag utilization research.