METHOD FOR INCREASING WEAR RESISTANCE OF A SURFACE LAYER OF AN ASPHALT-CONCRETE ROADBED Russian patent published in 2019 - IPC E01C7/35 

FIELD: road construction; municipal services.

SUBSTANCE: invention relates to road construction and municipal services, in particular to methods for increasing wear resistance of surface layer of asphalt-concrete roadbed. Technical result is achieved by the fact that annually as a type of energy effect on surface layer of roadbed for detection of microcracks there selected on the basis of mechanical action by violation of integrity, id est opening of its surface, for example, by treatment with metal brushes in the mode of microcutting similar to needle milling, and filling of the detected microcracks with a sealing compound is carried out by means of known method application of the surface layer of bitumen solution on kerosene in the specified parts by volume, and impregnation of surface layer of road pane with solid particles in form of abrasive grains from mineral substance, for example, quartz and granite, is performed by means of their preset location and pulsed heating of abrasive grains by known method to temperature not lower than bitumen melting point at their introduction into surface layer of roadbed by known method, for example, road rollers.

EFFECT: technical result is simplicity and high efficiency of increasing asphalt-concrete roadbed surface wear resistance with possibility of its complete mechanization.

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