PHYSICOCHEMICAL AND MINERALOGICAL PROPERT IES OF EAF AND AOD SLAGS

In Europe some 8 million tonnes of EAF and AOD slags are produced annu ally as waste products in the manufacture of different types of steel. Approximately 20 wt% is discarded in landfills. But adequate space is limited and disposal involves considerable cost. There is therefore a need to find ways of making use of these slags. This paper reports th e investigation of their physico-chemical and mineralogical properties and their leachability and toxicity as evaluated by TCLP tests. The p ossible uses of these slags are discussed.