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

The MgO granulated ground blast-furnace slag (GGBS) binder, as a novel has gained increasing attention in recent decades stabilization/solidification (S/S) to treat contaminated soils. In this study, the physical strength and leaching performance of an MgO-GGBS (MG) binder was examined compared with (PC) portland cement PC fly ash (PF) regarding S/S treatment dimethyl phthalates (PAE) soil after 7-day curing. PC, GGBS, (FA) were used binders effect different MG dosages discussed. results show that order early-stage curing was: PF<MG<PC, PAE leachate concentrations MG<PC≈PF. increase dosage can improve immobilize PAEs, while initial (3,000–10,000 mg/kg) reduce PAE. Therefore, showed better for PAE-contaminated than PF binders. relation between leachability further explored is expected provide guidance estimation clay binder.