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In recent years,circulating fluidized bed combustion fly ash(CFA) is used as a raw material for geopolymer synthesis.Hydrogen peroxide was employed as a foaming agent to prepare CFA-based foam geopolymer.The particle distribution,mineral composition,and chemical composition of CFA were examined firstly.Geopolymerization products were characterized by mechanical testing,scanning electron microscopy(SEM),X-ray diffraction(XRD),and X-ray fluorescence(XRF).The CFA-based foam geopolymer was successfully fabricated with different contents of hydrogen peroxide and exhibited uncompleted alkali reaction and reasonable strength with relative low atomic ratios of Si/Al and Si/Na.Type-C CFA in this research could be recycled as an alternative source material for geopolymer production.
In recent years, circulating fluidized bed combustion fly ash (CFA) is used as a raw material for geopolymer synthesis. Hydrogen peroxide was employed as a foaming agent to prepare CFA-based foam geopolymer. Particle distribution, mineral composition, and chemical composition of CFA-based foam geopolymer was successfully fabricated with different contents of X-ray fluorescence (XRF). CFA-based foam geopolymer was characterized by mechanical testing, scanning electron microscopy (SEM), X-ray diffraction hydrogen peroxide and patents uncompleted alkali reaction and reasonable strength with relative low atomic ratios of Si / Al and Si / Na.Type-C CFA in this research could be recycled as an alternative source material for geopolymer production.