BINDING AGENT Russian patent published in 2015 - IPC C04B7/153 

FIELD: chemistry.

SUBSTANCE: binding agent, including granulated blast furnace slag, liquid glass with density 1.3 g/cm³ with silicate modulus equal 1.5, and filling agent, characterised by the fact that as granulated blast furnace slag it contains slag with content of grain with size smaller than 10 mcm more than 50%, size smaller than 60 mcm more than 97%, as filling agent - rice husk with specific surface 510 m²/kg, thermally processed at 400°C, and additionally contains sodium hydroxide with the following component ratio, wt %: said granulated blast furnace slag 82.8-85.0, said filling agent 2.7-4.4, liquid glass with density 1.3 g/cm³ with silicate modulus equal 1.5 8.6-8.9, sodium hydroxide - the remaining part.

EFFECT: increase of compressive and impact strength, extension of raw material base of slag-alkali binding agents.

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