HIGH-STRENGTH CONCRETE Russian patent published in 2014 - IPC C04B28/04 C04B111/27 

FIELD: construction.

SUBSTANCE: high-strength concrete produced from a mix containing portland cement, sand, crushed stone and water and a complex additive containing sol of ferric hydroxide (III) with density equal to 1.021 g/cm³, hydrogen index 4.5-5.5 and plasticiser, differing by the fact that as a plasticiser it contains a superplasticiser Sika 1+, at the following ratio of components, wt %: 11.50-12.00 and 88.00-88.50 accordingly, at the following ratio of components of a raw mix, wt %: portland cement 21.60-28.40; sand 21.80-24.70; crushed stone 41.60-43.40; specified additive 0.50-1.00; water 7.70-9.30.

EFFECT: increased water impermeability of concrete.

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