Process for recycling an asphalt surface and apparatus therefor
AssigneeMcLean Ventures Corporation
InventorPatrick C. Wiley
Life of this patent
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Abstract
A process for recycling an asphaltic surface. The process comprises: (a) providing an asphaltic surface having an upper surface for recycling; (b) rupturing the upper surface to a depth of at least about 1.5 inches to provide a ruptured upper surface; (c) heating and mixing the ruptured upper surface on the asphalt surface to a temperature in the range of from about 100.degree. to about 350.degree. F. to produce a heated, ruptured upper surface which is substantially free of moisture; and (d) pressing the heated, ruptured upper surface to provide a recycled pavement surface. An apparatus adapted for carrying out the process is also described.
Claims14
An asphaltic surface recycling apparatus comprising:
- (a) rupturing means for rupturing an upper surface of said asphalt surface to produce a ruptured upper surface;
- (b) heating means and mixing means for heating said ruptured upper surface to a temperature in the range of from about 100.degree. to about 300.degree. F. to produce a heated, ruptured upper surface which is substantially free of moisture, said heating means comprising a bank of heaters extending across the width of the upper surface and said mixing means comprising a mixing element being disposed between said heaters;
- and
- (c) means for pressing said heated, ruptured upper surface to provide a recycled pavement surface.
An asphaltic surface pre-conditioning machine for use in heating and mixing a substrate selected from (i) aggregate on the asphalt surface or (ii) ruptured asphaltic surface prior to re-laying thereof, the machine comprising at least one bank of heaters having a plurality of elongate heaters in a side-by-side arrangement, a mixing element being disposed between adjacent elongate heaters, the mixing element comprising a blade member capable of being at least partially immersed in the substrate.
Dependencies are inferred from the claim text.