关键词: 铜矿渣;水泥;混凝土

Abstract: Copper slag is used in cement and concrete can reduce the cost of copper smelting enterprises, as well as protect the environment. The physical and chemical properties of copper slag as well as the utilization in cement and concrete are summarized. In cement,copper slag can be used as iron raw material to produce the raw material,which is easy to burn and can improve the rock phase structure and mechanical properties of the clinker. Copper slag also can be used as a mixture of cement,which has the advantages of low heat release and high late strength development. In concrete,copper slag can be applied as fine aggregate,which makes the working performance,mechanical properties and durability of copper slag concrete the same with the ordinary concrete. The chemical compositions of copper slag and cement clinker are similar,so copper slag can be used as cementitious material in concrete through physical or chemical stimulation method. Copper slag can react with Ca(OH)2 and results the similar hydration products as Portland cement. Copper slag also can reduce the brittleness coefficient of concrete and have the effect of reducing brittleness.

Key words: copper slag;cement;concrete