Economic and Environmental Geology

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Table. 5.

Table. 5.

Cases of geopolymer studies

Sources of sludge Additives Activators Thermal treatment (°C) Geopolymer product Ref.
Sewage sludge Power of glass Water glass 700 Brick, waste glass content of 90wt.% or more at 750 degrees meets the physical property specification Jeong et al. (2013)
Alumina aggregate Fly ash, furnace slag Potassium silicate 1,000 Heat-resistant building material. Maximum residual compressive strength at 800 °C Kim et al. (2017)
Aggregate sludge Feul ash, metakaoline Na2O, SiO2 Aggregate Lampris et al. (2009)
Econ. Environ. Geol. 2021;54:605-13 https://doi.org/10.9719/EEG.2021.54.5.605
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