Fig. 1
From: Sustainable alkali activated binders from a blend of biomass ash and iron sludge precursor
Mineral composition of BFA and IS according to X-ray diffraction (XRD). Q is quartz SiO2 (pdf No 5-490), CC is calcite CaCO3 (pdf No 1-837), K is calcium silicate hydrate Ca1.5SiO3.5·H2O (pdf No 33–306), AN is anhydrite CaSO4 (pdf No 72–503), CO is calcium oxide CaO (pdf No 77-2376), A is ferrite, Fe (pdf No 3-1050); B is iron oxide Fe0.974O (pdf No 73-2143); C is hematite Fe2O3 (pdf No 73–603); D is magnetite Fe3O4 (pdf No 3-863).
