Ceramics-Silikáty 44 (1) 26-34 (2000)

MORPHOLOGY AND CHEMICAL COMPOSITION OF MINERALS INSIDE THE PHASE ASSEMBLAGE C - C₂S - C₄A₃S - C₄AF - CS RELEVANT TO SULPHOALUMINATE BELITE CEMENTS

J. Strigáč, M.T. Palou, J. Krištín, J. Majling

The paper deals with a formation of solid solutions inside the equilibrium phase assemblage C-C₂S-C₄A₃S -C₄AF-CS of the oxide system CaO-SiO₂-Al₂O₃-Fe₂O₃-SO₃. The content of minor oxides incorporated in individual phases was generally lower in comparison with data given in the literature. C₂S and CS  phases form more homogeneous crystals with regard to their chemical composition than C₄A₃S  and the ferrite phase. From practical consideration the stoichiometry of the ferrite phase in the given phase assemblage can be appropriately represented by a composition corresponding to C₆AF₂.