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2 049 080

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Application

93013940/04, 1993-03-18

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Actual filing date

1993-03-18

(45)

Published

1995-11-27

(72)

Inventor

Titova L.A.Bejlina M.I.Abakumova A.P.Matveeva O.I.Fedorova G.D.Zykov A.V.

(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 2049080 C1

FIELD: building materials. SUBSTANCE: expanding addition to cement has, wt. -% muscovite-base finely milled mica 40-60; SiO2-base finely milled diopside 5-15, and gypsum dihydrate the rest. Opened porosity of cement with proposed addition is up to 28.2% the total one is up to 29.2% Compression strength is up to 43.0 MPa, bending strength is up to 6.87 MPa; air penetration resistance is up to 51,9 s/cm3. EFFECT: enhanced quality of addition. 2 tbl

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RU 2 049 080 C1

Authors

Titova L.A.

Bejlina M.I.

Abakumova A.P.

Matveeva O.I.

Fedorova G.D.

Zykov A.V.

Dates

1995-11-27—Published

1993-03-18—Filed

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