METHOD TO REPAIR ASPHALT-CONCRETE SURFACES Russian patent published in 2013 - IPC E01C23/09 

FIELD: construction.

SUBSTANCE: method to repair asphalt-concrete surfaces of motor roads with cracks of temperature origin includes disassembly along the trajectory of cracks of the upper layer of the surface, preparation of the surface. At the same time additionally a clay and sand mortar is injected into the crack exactly up to the upper part of asphalt concrete, limiters of repair area width are installed, a softening compound is poured into the crack and the adjacent area, by pouring a dose necessary for the entire area of repair, the softened mass of asphalt concrete is pushed along the entire width of the repair area, the produced groove is filled with a quick-hardening compound, a polymer concrete beam is installed and fixed onto the quick-hardening compound so that the beam matches with the tracks, the joints are hydrophobisated with a wetting agent.

EFFECT: production of more even surface, increased strength and durability of a repaired section of a road, reduced cost and labour intensiveness of works for repair of asphalt-concrete surfaces.

3 dwg