Road structure – process – or apparatus – Process – Heating
Patent
1987-11-17
1988-11-15
Novosad, Stephen J.
Road structure, process, or apparatus
Process
Heating
404 82, 404 91, 404 95, 404102, 404 92, E01C 2314, E01C 1900
Patent
active
047845180
ABSTRACT:
The invention here disclosed comprises a method and apparatus for rejuvenating an asphalt roadway surface resulting in up to approximately three inches of new repaved roadway surface produced at speeds of up to approximately twenty-two feet per minute. The method includes the steps of heating a top layer of roadway, scarifying that heated layer, adding a recycling agent and thoroughly mixing and screeding the road surface to form a recycled material, adding new asphalt mix to the recycled material and milling the combination to form a mixed material and leaving a sub-layer plane in the roadbed. The mixed material is next conveyed away to a paving station located at the end of the process. During this conveying, the sub-layer left by the milling cut is heated, scarified, treated and worked in a manner similar to the treatment performed on the top layer of road surface. Finally, the mixed material is laid upon the now properly prepared sub-layer at a paving station and a new welded, monolithic, roadsurface is formed. The apparatus of the invention comprise means for performing the above described method steps and may be incorporated into a first vehicle having independent drive means and a second vehicle, also having independent drive means designed to follow first vehicle along the road surface being repaved.
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Cutler Repaving, Inc.
Letchford John F.
Novosad Stephen J.
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