United States Department of Transportation
i
Evaluation of Oregon's first hot mix asphalt recycling project : Woodburn, Oregon, 1977.
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1979-03-01
[PDF-1.23 MB]
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Abstract:Pavement recycling has been suggested as a viable alternative to more conventional methods of pavement rehabilitation as a means of offsetting some of the problems resulting from spiraling energy costs and shortages of raw materials. This paper presents a discussion of the Woodburn Asphalt Recycling Paving Project, Oregon's first experience at large-scale asphalt concrete recycling utilizing a hot-mix process. The project is described briefly and overlay and mix designs are indicated. The construction program and specific equipment utilized are reviewed. The program of material sampling and testing and data collection are described. Test results are summarized. Special emphasis is given to an investigation of possible changes in material properties through the construction process. A summary of those factors most affecting emission production is presented. Costs and fuel consumption are summarized and possible saving over a similar conventional paving project are highlighted. Specific recommendations are presented to other agencies proposing similar projects. Finally, future research needs are outlined.
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