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2 379 242

(13)

(51)

IPC

C04B24/18(2006-01-01)

C04B22/06(2006-01-01)

C04B111/20(2006-01-01)

(21) (22)

Application

2008128785/03, 2008-07-14

(24)

Start date

2008-07-14

(22)

Actual filing date

2008-07-14

(45)

Published

2010-01-20

(72)

Inventor

Svatovskaja Larisa BorisovnaSolov'Eva Valentina JakovlevnaStepanova Irina Vital'EvnaErshikov Nikolaj Vasil'EvichRomashchenko Natalija MikhajlovnaKorobov Nikolaj Vasil'EvichStarchukov Dmitrij SergeevichNaumov Nikolaj Vladimirovich

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Universitet Putej Soobshchenija"

ADDITIVE FOR CONCRETE MIX Russian patent published in 2010 - IPC C04B24/18 C04B22/06 C04B111/20

Abstract RU 2379242 C1

FIELD: construction engineering.

SUBSTANCE: additive for concrete mix contains, wt %: cellulose liquor with pH=5.5±0.5, solids content 4.5±0.5 wt % and density 1.016 g/cm³, 88.98-91.20, sodium fluoride 0.40-0.50, 30% hydrogen peroxide - 0.40-0.50, microsilica with specific surface S_sp=2000 m²/kg 8.00-10.02.

EFFECT: higher bending strength and water resistance, reduced contraction.

1 tbl

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RU 2 379 242 C1

Authors

Svatovskaja Larisa Borisovna

Solov'Eva Valentina Jakovlevna

Stepanova Irina Vital'Evna

Ershikov Nikolaj Vasil'Evich

Romashchenko Natalija Mikhajlovna

Korobov Nikolaj Vasil'Evich

Starchukov Dmitrij Sergeevich

Naumov Nikolaj Vladimirovich

Dates

2010-01-20—Published

2008-07-14—Filed