HIGH-STRENGTH CONCRETE Russian patent published in 2014 - IPC C04B28/04 C04B111/20 

FIELD: construction.

SUBSTANCE: high-strength concrete contains portland cement, sand, crushed stone and water and a complex additive represented by sol of ferric hydroxide (III) with density equal to 1.021 g/cm³, hydrogen index 4.5-5.5 and additive Sika PerFin 300 at the following ratio of components, wt %: 14.50-15.00 and 85.00-85.50 accordingly, at the following ratio of components of a raw mix, wt %: portland cement 21.20-28.00; sand 21.80-24.70; crushed stone 42.40-44.50; specified additive 0.10-0.30; water 7.70-9.30.

EFFECT: reduced abradability of concrete.

1 tbl