ASPHALT CONCRETE MIX Russian patent published in 2003 - IPC

FIELD: highway engineering, applicable for arrangement of the upper courses of pavements in all climatic zones. SUBSTANCE: asphalt concrete mix comprises sand, mineral powder, polymeric structural addition and oil asphalt, contains oil heavy asphalt, used as a polymeric structural addition is a rubber thermosoftening plastic material, and additionally a surface-active plastic addition - tall pitch and crushing riddlings of broken rock of 0-5 mm fraction at the following relationship of components, mas.%: sand, 16.0-20.0; mineral powder, 10.0-15.0; rubber thermosoftening plastic material, 0.5-1.0; oil heavy asphalt, 5.0-6.5; tall pitch, 0.3-0.5; crushing riddlings of broken rock of 0-5 mm fraction, 57.0-68.2. EFFECT: enhanced strength indices of asphalt concrete at high indices of water-resisting and frost-resisting properties. 2 tbl, 1 ex