BLEND COMPOSITION Russian patent published in 2017 - IPC C04B28/04 E01C21/00 C04B24/24 C04B14/28 C04B18/06 C04B111/20 

FIELD: construction.

SUBSTANCE: blend compositions of raw mix consisting of sandy ground, filler presented by electric filter ash with a specific surface area of 380 m²/kg and fine limestone with a specific surface area of 260 m²/kg, an additive presented by aqueous solution with a density of ρ=1.025 g/cm³ and a pH value of 5.0 and including polycarboxylate copolymers of metacrylic acid with a density of ρ=0.95 g/cm³ and a pH-value of 7.0±0.5, which are modified by calcium chloride at the following mass ratio of additive elements, wt %: polycarboxylate copolymer of metacrylic acid with a density of ρ=0.95 g/cm³ and a pH value of 7.0±0.5 - 20.0-22.0; calcium chloride of 1.8-2.0, water - 76.2-78 at the following composition mass ratio, wt %: sandy ground - 76.50-77.0, Portland cement - 11.05-11.25, specified limestone - 0.20-0.22, specified ash - 1.95-2.02, specified additive - 0.09-0.11, water - 9.71-9.9.

EFFECT: increased bending tensile strength of improved soil.

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