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Shingles in Paving Project
LinkUp is actively working with the recycling and paving community to establish a strong local hot mix asphalt (HMA) end market for recycled asphalt shingles (RAS) that captures the resource value of tear-off shingles and diverts this material from landfills.
National and regional markets for using RAS in HMA are developing! Twelve states now have specifications or procedures in place allowing the use of RAS in HMA. Research on the subject is underway in King County; Vancouver, British Columbia; and Oregon. In Washington state, three HMA producers are using RAS in private road paving projects.
2011 Shingles in Paving Efforts
- Support successful use of RAS on King County Solid Waste Division paving projects.
- Foster a dialogue with regulatory agencies about sourcing, handling, and processing asphalt shingles for HMA.
- Facilitate development of a growing supply of RAS for the local market.
- Encourage local HMA market to use RAS.
- Support Washington State Department of Transportation and the Washington Asphalt Pavement Association in developing specifications for the use of RAS in HMA.
- Keep stakeholders involved of local market developments.
2010 Shingles in Paving Efforts
- Shared paving demonstration results with key audiences (local stakeholders, and state and national conference participants).
- Revised RAS specifications and guidelines based on 2009 paving demonstration experience – 2010 RAS Specification Guidelines (PDF, 1.2 MB)
- King County Materials Lab conducted 1-year performance testing of the demonstration pavement, which yielded favorable results. View the report (PDF, 950 K). View the test section layout (PDF, 240 K).
- Engage HMA producers and key transportation agencies in Washington State.
- Developed specifications for use of RAS on a King County Solid Waste Division paving project.
- Placed articles in trade publications to reach key audiences (see Resources).
2009 Paving Demonstration
LinkUp and its partners completed a paving demonstration in September 2009 to test the use of RAS in HMA on a public road in King County. Learn more about the paving demonstration and view the final report (PDF, 1.4 MB) and appendices (PDF, 2.2 MB).
Contact us for more information on the Shingles in Paving Project.
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