Heavy metal contamination, particularly Cr(VI), poses a significant environmental concern, as Cr(VI) is among the most prevalent heavy metals in contaminated soils. This study reports the development of a novel slag-phosphogypsum-based cementitious material (SPCM) synthesised from slag, phosphogypsum, and quicklime. The mechanical properties and micro-mechanisms of SPCM in solidifying Cr(VI)-contaminated silty clay were comprehensively investigated. The study evaluated the effects of SPCM on unconfined compressive strength (UCS), volumetric shr...
