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Recycling Tear Off Shingles in Bituminous Pavement

Recycling Tear Off Shingles in Bituminous Pavement. Ramsey County 2007 Lower Afton Road Trail Project By Jerry Auge, Jr. – Project Manager 651-266-7117 jerry.auge@co.ramsey.mn.us. Project Overview. Project Consisted of Utilizing Recycled Products Tear Off Shingles in Bituminous Mix

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Recycling Tear Off Shingles in Bituminous Pavement

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  1. Recycling Tear Off Shingles in Bituminous Pavement Ramsey County 2007 Lower Afton Road Trail Project By Jerry Auge, Jr. – Project Manager 651-266-7117 jerry.auge@co.ramsey.mn.us

  2. Project Overview • Project Consisted of Utilizing Recycled Products • Tear Off Shingles in Bituminous Mix • Recycled Plastics in Retaining Wall • Recycled Plastic/Rubber Pavers • Class 7 Aggregate (“gravel”) base • Reuse of sand in Rain Gardens • Benches have recycled plastics • Utilizing natural soil erosion material • HDPE Pipe • Natural Products

  3. Bituminous Pavement Design • Partially State Aid Funded • Mn/DOT Engineered HMA Spec. • Early involvement of Mn/DOT • County required 5% tear off shingles! • Option to have RAP • Utilized type PG 58-28 virgin asphalt binder oil • Minimum of 70% virgin asphalt binder in mix

  4. LAT Project RAS Spec • Shingles shall be ½-inch minus • Free of nails, other metal, plastic, wood, glass, other debris (less than 0.5 percent) • Suppliers written certification that the shingles are in compliance • County to approve recycling plans for: • Where to source the tear-off shingles supplies • How debris will be sorted out from shingles • Grinding, screening and storage

  5. LAT Project RAS Spec(continued) • County and Mn/DOT staff shall inspect recycling operations • Samples of final RAS product shall be provided to County and Mn/DOT

  6. Source of Sorted Shingles • 75% sorted on site at the roofing job • J Zac, Inc. roofing company • Hauled by Veit • Minor contamination • 25% supplied from transfer station • Veit Industries • Minimal contamination

  7. Omann’s Grinding Process: Phase I • Ground to 8” minus • Removed 95% of nails • Removed most of the remaining contamination

  8. Omann’s Grinding Process: Phases II and III • Removed remaining nails • Removed all metallic material • Ground shingles to a very fine consistency7/16 – inch minus • Provided very clean product to Midwest Asphalt

  9. Bituminous Supplier & Installer:Midwest Asphalt • Utilized oil in recycled shingles as partial replacement of virgin asphalt oil • Used recycled shingles at 5% in place of recycled asphalt pavement (RAP)

  10. Concerns/Lessons Learned With Tear off Shingles • Warm weather • Wind • Ground Shingle stockpile - tacky • HMA – tacky

  11. Recycling Tear Off Shingles in Bituminous Pavement Ramsey County 200 7 Lower Afton Road Trail Project By Jerry Auge, Jr. – Project Manager 651-266-7117 jerry.auge@co.ramsey.mn.us

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