Durability and Pore Structure Evolution of Foamed Lightweight Soil for Backfilling Under Wetting and Drying Cycles: Effects of Stabilization Systems
Converting waste slurry from underground construction into foamed lightweight soil (FLS) offers a route to waste valorization, but its durability under repeated moisture changes requires evaluation. This study compared FLS prepared with ordinary Portland cement (OPC), alkali-activated slag–fly ash (AASF), and hybrid OP...