HEAVY DIOPSIDE CONCRETE WITH HIGH STRENGTH Russian patent published in 2020 - IPC C04B22/00 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions of concrete and can be used to produce heavy concrete for making articles from concrete in civil and industrial construction when erecting special-purpose structures. Invention contains a composition for producing heavy diopside concrete with high strength. Mixture contains Portland cement CEM I 42.5B, diopside sand, diopside crushed stone, water and a complex additive. As sand there used is screening of crushing of diopside rocks with Mcr = 2.5. Chips are represented by diopside fractions from 5 to 10 mm - 40 %, fractions from 10 to 20 mm - 60 %. Complex additive contains microsilica and Polyplast SP-1 chemical additive. Ratio of components of crude mixture is as follows: portland cement - 18.22; said sand - 25.89; said crushed stone - 47.95; Polyplast SP-1 - 0.27; microsilica - 1.92; water - 5.75.

EFFECT: technical result is production of heavy concrete with high strength based on calcium-magnesium silicate rocks - diopside.

1 cl, 5 tbl