COMPOSITIONS OF CONCRETE MIXTURES BASED ON SUBSTANDARD LARGE AND FINE AGGREGATES Russian patent published in 2024 - IPC C04B18/16 C04B28/02 

FIELD: construction.

SUBSTANCE: invention relates to composition of a concrete mixture using substandard coarse and fine aggregates, both natural and man-made. Composition of the concrete mixture based on substandard coarse and fine aggregates for the production of concrete and articles based thereon includes components at the following ratio, wt.%: coarse aggregate with particle size of 5 to 40 mm 40–50; fine aggregate with fraction of less than 5 mm 20–30; nanocement 15–25; water—the rest, while coarse aggregates are used in the form of substandard nonmetallic natural coarse aggregates, namely low-strength, weak crushed stone with low frost resistance and abrasion, or in the form of technogenic wastes, namely products of crushing of cast metallurgical slags, stone wastes of construction demolition of buildings and structures; and fine aggregates are used in the form of substandard natural fine and dusty sands of open pits, deserts and screenings of crushing of rocks or in the form of technogenic wastes with size of fractions less than 5 mm.

EFFECT: providing high structural and technical properties of concrete.

1 cl, 6 tbl, 4 dwg