METHOD OF RECUPERATION OF THE ASPHALT CONCRETE Russian patent published in 2008 - IPC C04B26/26 E01C19/10 

FIELD: construction materials industry; methods of recuperation of the asphalt concretes.

SUBSTANCE: the invention is pertaining to the field of the repair works, in particular, to the repair of the asphalt covers and may be used at the reuse of the asphalt concrete. The technical result of the invention is optimization of the process of recuperation of the old asphalt concrete with reduction of the net cost of the manufactured asphalt concrete at the expense of usage of its components extracted at the reprocessing of the old asphalt concrete. The method of recuperation of the asphalt concrete provides for comminution of the crushed asphalt concrete and its mixing with the mineral component. At that in the capacity of the mineral component use the mineral powder in the amount from 30 up to 100 % of the mass of the asphalt concrete, and the comminution of the asphalt concrete is conducted in the electromagnetic crusher with usage of the working substances in the alternating magnetic field with the strength from 35 up to 65 kA/m and the frequency from 35 up to 100 Hz. The produced mixture of the products is separated into the fractions, which are mixed with addition of the bitumen.

EFFECT: the invention ensures optimization of the process of recuperation of the old asphalt concrete with reduction of the net cost of the manufactured asphalt concrete.

3 cl, 11 ex