Study of the Effect of Multicomponent Hardening Activators on the Properties of Natural Anhydrite

The application of complex activators of hardening of anhydrite binder obtained from natural anhydrite is considered. Such activators make it possible to expand the possibilities of using anhydrite binders in construction. The study used modern methods using mathematical planning of the experiment. Sulfate additives were used as experimental factors, giving the material the best operational and aesthetic properties: KAl(SO₄)₂^.12H₂O, CuSO₄, ZnSO₄^.H₂O. It has been established that multicomponent hardening activators directly regulate the properties of the anhydrite binder. It has been established that an increase in the concentrations of the hardening activators studied in this work always leads to an increase in the degree of hydration of the binder. The direct relationship between the degree of hydration and compressive strength is preserved only in the area of small and medium concentrations of activating additives.

H.-B. FISHER¹, Doctor-Engineer;
B.B. VTOROV², Candidate of Sciences (Engineering);
A.F. BURYANOV³, Doctor of Sciences (Engineering)

¹ Bauhaus- Universität Weimarei (Coudraystraβe, 11, 99421, Weimar, Deutschland)
² BAUMIT LLC (11, Universitetskaja Street, Dubna, 141982, Moscow Region, Russian Federation)
³ National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

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