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2 049 081

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IPC

(21) (22)

Application

93013941/04, 1993-03-18

(22)

Actual filing date

1993-03-18

(45)

Published

1995-11-27

(72)

Inventor

Titova L.A.Bejlina M.I.Postnova M.V.Razhev V.G.Surnina L.N.Shabalina G.P.

(73)

Holder

Nauchno-Issledovatel'Skij, Proektno-Konstruktorskij I Tekhnologicheskij Institut Betona I Zhelezobetona

EXPANDING ADDITION TO CEMENT Russian patent published in 1995 - IPC

Abstract RU 2049081 C1

FIELD: building materials. SUBSTANCE: expanding addition has, wt.-% alumina slag 4-6; gypsum dihydrate 22-24; blast furnace granulated slag 60-69, and SiO₂-base waste of wet iron ore concentration 5-10. Cement density with proposed addition is up to 2400 kg/m³, compression strength is 41.75 MPa; bending tensile strength is up to 6.75 MPa, and self-tension is up to 5 MPa. EFFECT: enhanced quality of addition. 2 tbl

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RU 2 049 081 C1

Authors

Titova L.A.

Bejlina M.I.

Postnova M.V.

Razhev V.G.

Surnina L.N.

Shabalina G.P.

Dates

1995-11-27—Published

1993-03-18—Filed