ASPHALT CONCRETE Russian patent published in 2020 - IPC C04B26/26 C08L95/00 E01C7/22 

FIELD: construction.

SUBSTANCE: invention relates to road construction materials, in particular to hot fine-grained mixtures, and can be used in road and aerodrome construction of coatings and bases of motor roads of enterprises in I–III climatic zones, characterized by cold and wet climate. Asphalt concrete containing spent molding mixture used for production of casting molds in production of steel parts, mineral powder for asphalt-concrete mixtures and bitumen, additionally includes siftings of "Bely Kamen" open-pit crushing at the following components ratio, wt%: siftings of "Bely Kamen" open-pit crushing 70–80, spent molding mixture 17–25, said mineral powder 3–5, bitumen (over 100 % of mineral part) 5–6.3.

EFFECT: expansion of arsenal of road construction materials.

1 cl, 1 tbl