HIGH-STRENGTH CONCRETE Russian patent published in 2008 - IPC C04B28/04 C04B111/20 

FIELD: construction.

SUBSTANCE: invention is attributed to composition of high-strenght concrete and can be used to manufacture products for civil and industrial construction and also in erection of special purpose structures. High-strength concrete contains portland cement, sand, break-stone, water and complex additive of composition, mass % of ferrum hydrate (III) Fe(OH)₃ sol with specific density of p=1.021 g/cm³, pH=4.5-84.85-85.20; kalium ferrocyanide (II) K₄[Fe(CN)₆] - 0.80-0.85; superplasticising admix C-3 -14.00-14.30, with the following concrete mixture ratio, mass %: portland cement 20.60-27.40; sand 21.80-24.70; break-stone 43.10-44.90; adoresaid additive 0.60-0.80; water 7.10-9.00.

EFFECT: compressive strength improvement at designed age and lowered creeping.

4 dwg, 1 tbl