NEW ULTRA-HIGH STRENGTH CONCRETE Russian patent published in 2019 - IPC C04B28/02 C04B7/12 C04B14/06 C04B14/28 C04B111/20 

FIELD: manufacturing technology; chemistry.

SUBSTANCE: invention relates to a new non-self-leveling, superhigh-strength hydraulic composition which can be used for making concrete parts in one step regardless of their shape or profile without recourse to assembly. Hydraulic composition contains 100 parts of cement, particles of which have BET specific surface area of 1.20 to 5 m²/g; from 32 to 42 parts of water; from 5 to 50 parts of mineral additive A1, particles of which have D50 smaller than or equal to 6 mcm selected from microsilica, metakaolin, slag, pozzolans or mixtures thereof; from 90 to 230 parts of sand, particles of which have D50, greater than or equal to 50 mcm, and D90, less or equal to 3 mm; from 0.0001 to 10 parts of superplasticizer, active material concentration of which is equal to 15 wt%. Invention also relates to a method of producing a hydraulic composition, a composition of a hydraulic binder and a method of producing a hydraulic composition. Invention is developed in dependent claims.

EFFECT: obtaining ultra-high strength concrete.

17 cl, 4 tbl