COMPOSITION FOR MANUFACTURING OF GYPSUM ARTICLES Russian patent published in 1995 - IPC

Abstract SU 1596668 A1

FIELD: building materials production. SUBSTANCE: proposed composition contains (mass%): technical lignosulfonates 4-12, potassium or sodium bichromate 0.3-2.2, sulfate of alkali or alkali-earth metal 0.5-3.0 and β -semihydrate of calcium sulfate. Mechanical strength thus prepared composition after saturation by water at constant mass 15.3-17.5 is 12.2-13.6 MPa, coefficient of water resistance is 0.775-0.81. EFFECT: increases water resistance and strength of desired articles. 2 tbl

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SU 1 596 668 A1

Authors

Lukojanov A.P.

Bortnikov V.G.

Ivanitskij V.V.

Gudkov Ju.V.

Dates

1995-08-27—Published

1988-12-02—Filed