METHOD AND MACHINERY FOR REPAIR AND RESTORATION OF ROAD PAVEMENTS Russian patent published in 2000 - IPC

FIELD: road-building and repair machinery and equipment. SUBSTANCE: for repair of pavements, binding material is sprayed according to method by means of centrifugal nozzles simultaneously with supply of hot air. Nozzles produce such spraying cone which is directed so that half of binding material is applied to road surface, and another half of binding material is applied to simultaneously falling crushed-stone. Body for crushed-stone is of double-section type for keeping two fraction sizes of material. Both sections of body are heated through passages by supply of exhaust gases from vehicle engine and from air heater. Supply of gases is effected through hinges of body tipping mechanism. Vessels for binding material are provided inside with flue tubes which are interconnected by strips. Pipelines for delivery of binding material are of double-passage type. Outlet of double-passage pipeline is connected with centrifugal nozzles for spraying binding material to road surface. Description of invention brings forth designs of feeders for compacting rollers and of device for distribution of crushed-stone. Application of aforesaid embodiment of machinery and method ensures higher quality of work, long service life of pavement and higher productive capacity. EFFECT: higher efficiency. 8 cl, 8 dwg