Coal gangue, geopolymer, Municipal Solid Waste Incineration Fly Ash, Cementing material, Heavy metal, sustainability
Sandy silt, Alkali-activated, Solidified soil, Slag (GGBFS), Alkali-activator, Artificial seawater, Deterioration
Municipal solid waste incineration byproducts, Coal gangue geopolymers, Liquid-to-solid ratio, Alkali solution ratio, Leaching toxicity