Road structure – process – or apparatus – Process – In situ treatment of earth or roadway
Patent
1977-08-12
1978-11-07
Byers, Jr., Nile C.
Road structure, process, or apparatus
Process
In situ treatment of earth or roadway
404118, 404 90, 404 95, E01C 706
Patent
active
041243250
ABSTRACT:
Disclosed is a method and apparatus for recycling asphalt concrete roadways. The apparatus includes means for heating the roadway and applying emulsified asphalt thereto prior to scarifying the heated surface. The surface is then scarified so as to loosen the heated asphalt. The scarified material is then treated with asphalt and, if desired, a rejuvenating agent. They are mixed thoroughly to form a hot mix of asphalt concrete from the old road material. New material is added, and mixed with the old material by a pug mill rotor. The combined rejuvenated hot mix is further mixed and leveled by means of screws and then compacted substantially by a vibrating screed. The screed has a continuous bottom plate and a plurality of relatively movable upper sections which are connected by turnbuckles adapted to be adjusted for bending the bottom plate of the screed to conform to the contour of the road crown. Final compaction of the road surface is obtained by rollers.
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Byers Jr. Nile C.
Cutler Repaving, Inc.
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