MgO-GGBS Binder–Stabilized/Solidified PAE-Contaminated Soil: Strength and Leachability in Early Stage

Abstract

The MgO-GGBS (granulated ground blast furnace slag) binder, as a novel binder, has gained increasing attention in recent decades in S/S (stabilization/solidification) to treat contaminated soils. In this study, the physical strength and leaching performance of a MgO-GGBS (MG) binder was examined and compared with PC (Portland cement) and PF (PC and fly ash) regarding the S/S treatment of PAEs (dimethyl phthalates) contaminated soil after a 7-day curing. PC, GGBS, FA (fly ash) and MgO were used as binders and the effect of different MG dosage was discussed. The results show that the order of early-stage strength after a 7-day curing was: PF