INSTANT-CHILLED STEEL SLAG AGGREGATE IN CONCRETE - STRENGTH RELATED PROPERTIES

The properties of concretes containing instant-chilled steel slag (I.C.S.) as aggregate are presented. The I.C.S. slag possesses good physical and mechanical properties and has sufficient stability for use as a coarse aggregate in concrete. Bond tests have shown that I.C.S. slag exhibits higher interfacial bond splitting strength with cement mortar than that of limestone aggregate. The tensile splitting strength of the slag aggregate itself is higher than that of limestone. Compressive, indirect tensile and flexural strengths of I.C.S. slag concretes were greater than those of corresponding control concretes containing limestone aggregate.