Performance of Recycled Asphalt Shingles in Hot Mix Asphalt. Status: CompleteReport Date: 06/01/2012 Summary: The use of recycled shingles in hot mix asphalt reduces production costs while benefiting the environment. Researchers conducted a literature review of nationwide applications of manufactured and tear-off shingles, focusing on specifications, case studies, demonstration projects and environmental safety. Final Deliverables: Report #2012-TFP-5 Related Materials: Related Research: