Evaluation of the engineering properties and durability of mortar produced using ground granulated blast-furnace slag and stainless steel reduced slag

This study used ground granulated blast-furnace slag (GGBFS) and stainless steel reduced slag (SSRS) to produce mortar as partial cement replacement. The physical properties (compressive strength, flexural strength, tensile strength, and ultrasonic pulse velocity [UPV]) and durability (resistivity, resistance to sulfate attack, and autoclave expansion) were tested. The results revealed the slump and flow increased with an increase in the SSRS and GGBFS amounts, which indicated the overall workability improved with an increase; the compressive, flexural, and tensile strengths decreased as the SSRS replacement percentage increased, and the compressive, flexural, and tensile strengths increased with an increase in the GGBFS.