CONCRETE MIXTURE Russian patent published in 2009 - IPC C04B28/04 C04B111/27 

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of construction materials, particularly to production of concrete wall blocks. The concrete mixture contains the following, wt %: portland cement 23.0 to 27.0; ash-slag filler with the following chemical composition, wt %: SiO₂ 40.7, Al₂O₃ 15.8, Fe₂O₃ 13.5, CaO 8.9, MgO 4.3, Na₂O+K₂O 3.8, SO₃ 1.4, "п.п.п." 8.5 and particle composition, wt %: larger than 0.63 mm - 0.2, larger than 0.315 mm but smaller than 0.63 mm - 4.8, larger than 0.14 mm but smaller than 0.315 mm - 62, smaller than 0.14 mm - 33, foam polystyrene crumbs with particle size of 10 mm - 1.5-2.0, superplasticiser C-3 30.25 to 0.35, water - 10.0 to 13.0.

EFFECT: reduced water absorption of concrete.

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