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Shingle recycling advocates point to performance and specification barriers; researchers studying balanced mix design
Massachusetts Department of Environmental Protection · January 7, 2026
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Summary
Speakers said asphalt shingle recycling has technical performance and specification challenges in New England; Balanced Mix Design and pilot studies may help, while manufacturers have set diversion goals and some U.S. producers are piloting extraction and pellet solutions.
Dan Horton of ASR Systems told MassDEP stakeholders that asphalt shingle recycling has matured technically but faces performance and specification barriers that limit use in hot mix asphalt in New England.
Horton said most recycled asphalt shingles (RAS) historically have been…
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