ADDITIVE FOR CONCRETE MIX Russian patent published in 2010 - IPC C04B24/18 C04B103/60 C04B103/65 

FIELD: construction.

SUBSTANCE: invention is related to construction materials and may be used as additive for concretes and construction mortars. Additive for concrete mixture contains wt %: after-yeast stillage with content of dry substances - 4.0-5.0 wt %, pH-5.0-6.0, density - 1.016 g/cm³ 73.80-76.20, sodium fluoride 0.30-0.50, manganese dioxide 0.70-0.90, calcium hydroxide 0.70-0.90, microsilica with S"уд"=2,000 m²/kg 22.10-23.90.

EFFECT: reduced water absorption, lower abradability and increased impact strength of concrete or construction mortar.

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