recycling tear off shingles in bituminous pavement
DESCRIPTION
Recycling Tear Off Shingles in Bituminous Pavement. Ramsey County 2007 Lower Afton Road Trail Project By Jerry Auge, Jr. – Project Manager 651-266-7117 [email protected]. Project Overview. Project Consisted of Utilizing Recycled Products Tear Off Shingles in Bituminous Mix - PowerPoint PPT PresentationTRANSCRIPT
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Recycling Tear Off Shingles in Bituminous Pavement
Ramsey County 2007 Lower Afton Road Trail Project
By Jerry Auge, Jr. – Project Manager651-266-7117
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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
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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
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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
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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
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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
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Omann’s Grinding Process: Phase I
• Ground to 8” minus
• Removed 95% of nails
• Removed most of the remaining contamination
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Omann’s Grinding Process: Phases II and III
• Removed remaining nails• Removed all metallic material• Ground shingles to a very fine consistency
7/16 – inch minus• Provided very clean product
to Midwest Asphalt
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• Utilized oil in recycled shingles as partial replacement of virgin asphalt oil
• Used recycled shingles at 5% in place of recycled asphalt pavement (RAP)
Bituminous Supplier & Installer:Midwest Asphalt
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Concerns/Lessons Learned With Tear off Shingles
• Warm weather• Wind• Ground Shingle stockpile - tacky• HMA – tacky•
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Recycling Tear Off Shingles in Bituminous Pavement
Ramsey County 200 7 Lower Afton Road Trail Project
By Jerry Auge, Jr. – Project Manager651-266-7117