MODIFYING ADDITIVE Russian patent published in 2009 - IPC C04B7/00 C04B28/00 C04B111/20 

Abstract RU 2371401 C2

FIELD: chemistry.

SUBSTANCE: invention relates to composition of a modifying additive to cement, concrete mixture, mortar, used for making concrete and reinforced concrete objects, as well as gypsum based objects. The modifying additive is obtained by drying wastes from processing boron-containing ore from the Dalnegorsk deposit with anhydrite content of 11 to 22% of the mass of the wastes. The said wastes can also be heated to 100 to 120°C, obtaining hemihydrate gypsum.

EFFECT: increased strength of objects containing the said modifying additive.

2 cl, 5 ex

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RU 2 371 401 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

2009-10-27Published

2007-08-29Filed