ASPHALT CONCRETE MIXTURE Russian patent published in 2004 - IPC

FIELD: road-building materials.

SUBSTANCE: asphalt concrete mixture comprises bitumen, mineral filling agent as fractions of crushed stone 5-10 and 10-20 mm of cubic form of rubbles, sand with particles of cubic form of fraction 0.315-5 mm, fraction of crushed stone crushing sifting 0-0.315 mm as mineral powder and additionally - activated mineral powder in the following ratio of components, wt.-%: bitumen, 3.94-4.13; crushed stone fractions of cubic form of rubbles: fraction 5-10 mm, 21.3-32.0; fraction 10-20 mm, 32.0-51.8; sand fraction with particles of cubic form 0.315-5.0 mm, 13.5-29.7; crushed stone crushing sifting fraction 0-0.315 mm, 0.86-1.96; activated mineral powder, 3.84-7.73. Invention provides reducing consumption of bitumen and enhancing the cohesion coefficient of wheel tires of means of transportation with surface of road cover.

EFFECT: valuable properties of mixture.