Considering some previous data concerning binding properties of silicate–aluminate–sulfate composites, the present paper brings complementary data regarding the influence of environmental factors (temperature, humidity), on the behavior of such kind of binders. Composite materials based on ternary binders with Portland cement, high aluminate cement and calcium sulfate (as hemihydrates or anhydrite III) content were investigated.

For selected compositions, taking into account their good binding properties in normal conditions, the influence of high temperatures and freezing–thawing effects on the mechanical strengths of such binders were investigated.           

X–ray diffraction and thermal analysis were carried out for deeper research of involved processes in this complex masses behavior.