J. Strigac et al., Morphology and chemical composition of minerals inside the phase assemblage C-C2S-C(4)A(3)S-C(4)AF-CS relevant to sulphoaluminate belite cements., CERAM-SILIK, 44(1), 2000, pp. 26-34
The paper- deals with a formation of solid solutions inside the equilibrium
phase assemblage C-C2S-C(4)A(3) (S) over bar-C(4)AF-C (S) over bar of the
Bride system CaO-SiO2-Al2O3-Fe2O3-SO3. The content of minor oxides incorpor
ated in individual phases,was generally lower in comparison with data given
in the literature. C2S and C (S) over bar phases form more homogeneous cry
stals with regard to their chemical composition than C(4)A(3)(S) over bar a
nd the ferrite phase. From practical consideration the stoichiometry of the
ferrite phase in the given phase assemblage can be appropriately represent
ed by a composition corresponding to C(6)AF(2).