METHOD OF COLD RECOVERY OF ASPHALT CONCRETE (THREE VERSIONS) Russian patent published in 2011 - IPC C08J11/00 C10C3/16 

FIELD: construction.

SUBSTANCE: invention relates to method of cold recovery of asphalt concrete, consisting in grinding of asphalt concrete, in moistening and mixing of components, besides, moistening is carried out by introduction of aqueous solution of complex organic preparation at coefficient of its dissolution with water 1:250-1:2500, including organic part in the form of complex of ferment preparations and chemical part in the form of hydrogen peroxide taken at the ratio of 1:1-9:1, depending on moisture of asphalt chip, quantity of organic binder and ambient temperature in it, at the following ratio of components, wt %: asphalt chip - 93-98, complex organic preparation - 7-2. Also invention relates to other versions of cold recovery of asphalt concrete.

EFFECT: reduction of material expenses for road engineering materials, compliance of technical properties of recovered asphalt concrete with new asphalt concrete suitable to arrange all layers of road surface, including top bearing layer.

3 cl, 1 tbl