Mechanochemically activated bottom ash-fly ash geopolymer

A source of sub-bituminous coal bottom ash was mechanochemically activated by co-grinding fly ash and a sodium silicate powder for use in a geopolymer application. A total of nine different mixes were considered to study the effects of the mechanochemical treatment, mixing procedure, and bottom ash loading. The compressive strength, reactivity, rate of geo-polymerization and morphology were investigated using isothermal calorimetry,...