Raw materials for the preparation of POPbeton
Waste brown coal power plant fly ash CZ (alumosilicate glass with low Ca contents, containing Fe oxides, minority crystalline phases).
Polished specimen of a fly ash particle (the particle has not identical composition along the cross section).
Waste fluid fly ash from the desulphurization process of flue gases in fluidized bed boilers (apart from the alumosilicate phase, it further contains CaO, CaSO4, CaCO3, CaSO3).