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2 371 404

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(51)

IPC

C04B7/52(2006-01-01)

C04B22/00(2006-01-01)

C04B103/60(2006-01-01)

(21) (22)

Application

2007132616/03, 2007-08-29

(24)

Start date

2007-08-29

(22)

Actual filing date

2007-08-29

(45)

Published

2009-10-27

(72)

Inventor

Gordienko Pavel SergeevichZorina Ljudmila GeorgievnaKolzunov Viktor AntonovichKolomiets Vasilij IvanovichKolomiets Ol'Ga IvanovnaShabalin Il'Ja AleksandrovichJarusova Sof'Ja BorisovnaVjalykh Sergej Vasil'Evich

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

CEMENT Russian patent published in 2009 - IPC C04B7/52 C04B22/00 C04B103/60

Abstract RU 2371404 C2

FIELD: chemistry.

SUBSTANCE: invention relates to cement composition. Cement contains the following, in wt %: wastes from processing boron-containing mineral raw material from the Dalnegorsk deposit datolite - wollastonite skarn, heated to temperature 100 to 120°C, obtaining hemihydrate gypsum 4 to 8, portland cement clinker - the rest, alkalising additive in form of dry granular material in an amount sufficient for providing pH of not less than 11. The alkalising additive used can be sodium hydroxide, sodium carbonate or calcium hydroxide.

EFFECT: increased strength of hardened cement paste.

2 cl, 14 ex

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RU 2 371 404 C2

Authors

Gordienko Pavel Sergeevich

Zorina Ljudmila Georgievna

Kolzunov Viktor Antonovich

Kolomiets Vasilij Ivanovich

Kolomiets Ol'Ga Ivanovna

Shabalin Il'Ja Aleksandrovich

Jarusova Sof'Ja Borisovna

Vjalykh Sergej Vasil'Evich

Dates

2009-10-27—Published

2007-08-29—Filed