HIGH-STRENGTH CONCRETE Russian patent published in 2015 - IPC C04B28/04 C04B24/24 C04B22/08 C04B103/40 

FIELD: construction.

SUBSTANCE: high-strength concrete from the mix comprising Portland cement, silicon dioxide containing component, an additive and water contains quartz sand with the fineness modulus, Mc. = 2.6, the crushed stone is the granite crushed stone with the fraction 5-10 mm, the silicon dioxide containing component is the colloidal solution H₂SiO₃ with the density ρ = 1.014 g/cm³ and pH = 4±0.5 value, and the additive is the water solution with the density ρ = 1.12 g/cm³ and pH = 7.5±0.5 consisting of the mix of polycarboxylated polymers: polycarboxylated polymer on the basis of methacrylic acid with the density ρ = 0.95 g/cm³ and pH = 7±0.5, polycarboxylated polymer on the basis of allyl ether and maleic acid anhydrite with the density ρ = 1.03 g/cm³ and pH = 7±0.5, sodium gluconate C₆H₁₁NaO₇ and water at the following ratio of components, wt %: polycarboxylated polymer on the basis of methacrylic acid with the density ρ = 0.95 g/cm³ and pH = 7±0.5; - 9.3-10.0; polycarboxylated polymer on the basis of allyl ether and maleic acid anhydrite with the density = 1.03 g/cm³ and pH = 7±0.5 - 10.2-10.4; sodium gluconate C₆H₁₁NaO₇ - 2.6-2.8; water - 77.2-77.5, at the following ratio of components of high-strength concrete, wt %: Portland cement 21.1-23.2; the named crushed stone 41.94-42.82; the named sand 28.3-29.0; the named silicon dioxide containing component 0.12-0.13; the named additive 0.15-0.2; water 6.24-6.75.

EFFECT: increase of mobility and survivability of concrete mix.

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