VIBROPACKED HOT ASPHALT CONCRETE MIX Russian patent published in 2003 - IPC

FIELD: road-building materials, applicable for construction and overhaul of roadway asphalt pavements. SUBSTANCE: vibropacked hot asphalt concrete mix comprising broken rock of 5-20 mm fraction, sand and asphalt binder additionally has milled asphalt concrete of a fraction up to 15 mm and oil solution of synthetic high-molecular polybutadiene rubber, and used as sand are riddlings of broken rock of up to 5-mm fraction at the following relationship of components, mas.%: broken rock of 5-20 mm fraction, 32.6-40.8; sand, riddlings of broken rack of up to 5-mm fraction, 26.8-28.0; oil solution of synthetic high-molecular polybutadiene rubber, 0.2-0.4; asphalt binder, 20.0-23.0. EFFECT: enhanced strength and shift-resistance of vibropacked hot asphalt concrete mix, reduced consumption of conditioned mineral material and binder due to salvaging of waste of milled old asphalt concrete. 3 tbl, 1 ex