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2 149 844

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Application

98122709/03, 1998-12-18

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Start date

1998-12-18

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Actual filing date

1998-12-18

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Published

2000-05-27

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Inventor

Martirosov G.M.Titova L.A.Bejlina M.I.Titov M.Ju.Lebedev A.O.Sidenko I.L.Posysaev A.N.Bukreeva T.V.

(73)

Holder

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

EXPANDING ADDITIVE TO CEMENT Russian patent published in 2000 - IPC

Abstract RU 2149844 C1

FIELD: manufacture of straining, expanding and shrinkage-free cements and concretes. SUBSTANCE: expanding additive comprises spent catalyst for purifying natural gas and accompanying oil gases containing at least 75% of Al2O3 and gypsum, ratios of components being as follows, wt %: said catalyst, 15- 20; and gypsum, 80-85. EFFECT: greater thickness of structure of cement stone and reduced transmissivity thereof. 2 tbl

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RU 2 149 844 C1

Authors

Martirosov G.M.

Titova L.A.

Bejlina M.I.

Titov M.Ju.

Lebedev A.O.

Sidenko I.L.

Posysaev A.N.

Bukreeva T.V.

Dates

2000-05-27—Published

1998-12-18—Filed

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