Yanheng Zhao

All-solid-waste modified phosphogypsum-based backfill: Synergistic hydration, contaminant immobilization, and environmental assessment

Large-scale use of solid-waste-modified phosphogypsum (PG) backfill is vital for sustainable mining, but its hydration and contaminant immobilization mechanisms remain unclear. This study systematically reveals the multi-scale synergy, links mix design, microstructure, and macro-...