METHOD TO INCREASE DURABILITY OF ASPHALT SURFACE OF MOTOR ROAD Russian patent published in 2015 - IPC E01C11/02 E01C5/20 

FIELD: construction.

SUBSTANCE: in an asphalt surface at the distance of 5-10 m from each other they mill cavities, coat them with liquid bitumen, and belts are laid into them from elastic-resilient material, representing a polymer composition on the basis of two liquid-viscous low-molecular rubbers with end functional carboxyl and epoxide groups, which are copolymerized and 3D binding agent with three epoxide groups, at the same time deformation joints are formed. Cavities are made with width of 10-30 mm and length equal to width of the asphalt surface, then along the width of the road above deformation joints they roll a roll surface with thickness of 10-15 mm from the same material.

EFFECT: method makes it possible to produce a road surface, which will be successfully operated in winter and summer time without formation of transverse and longitudinal cracks, service life of which may achieve 30 years without repair.

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