United States Department of Transportation
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Washington State Department of Transportation's first asphalt concrete recycling project--renslow to ryegrass
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1978-07-01
[PDF-1.36 MB]
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Alternative Title:Recycling asphalt pavements : Ellensburg, Washington
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Edition:Final report
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NTL Classification:NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance
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Abstract:This asphalt concrete recycling project, the first attempted by the Washington State Department of Transportation, seems so far to be very successful. The project looks good from a standpoint of economy, energy use, conservation of natural resources, feasibility of construction, and from an evaluation of the test data obtained to date. Certain pitfalls seem to e~st when using this type of a recycling process, such as selection of the proper rejuvenator, degrading of the aggregates, pollution, proper amounts o£ new aggregate, and other minor problems. Properly conducted preliminary testing and design can avoid a multitude of these pitfalls. Future asphalt concrete recycling will most likely be a definite consideration in the rehabilitation of asphalt concrete highways in Washington. In fact, one project has already been scheduled for recycling in 1978 construction, with a number of additional pavements being considered for 1979 construction.
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