FIELD: chemistry.
SUBSTANCE: one version of the method of making an object involves preparation of a hydrophobisation complex modifying additive through intense mixture of aqueous solutions of sodium tripolyphosphate, sodium adipate, potassium polymethylsiloconate and phosphogypsum with subsequent in situ obtaining of calcium polymethylsiliconate and an antifoaming agent, its mixture until obtaining a homogeneous mass with hardening water and with intense mixture with gypsum binder (high-strength, construction, anhydrous binder, their mixture) and, if necessary, with crushed filler and moulding the object. Other versions of the method of making water-resistant composite objects and the obtained composite object are also presented.
EFFECT: increased durability and improved operational characteristics of the objects.
7 cl, 11 ex, 2 tbl
