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The Hassan / Omann Shingles Recycling Demonstration Project A Presentation by Bill Boettner At the Dakota County Shingl

The Hassan / Omann Shingles Recycling Demonstration Project A Presentation by Bill Boettner At the Dakota County Shingles Recycling Workshop On Tuesday, December 4, 2007. Who’s Who. Local agency sponsor: Town of Hassan

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The Hassan / Omann Shingles Recycling Demonstration Project A Presentation by Bill Boettner At the Dakota County Shingl

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  1. The Hassan / Omann Shingles Recycling Demonstration Project A Presentation by Bill Boettner At the Dakota County Shingles Recycling Workshop On Tuesday, December 4, 2007

  2. Who’s Who • Local agency sponsor: Town of Hassan • Original grant funding source: Minnesota Local Road Research Board’s (LRRB)Local Operational Research Assistance (OPERA) program • Shingle recycler, HMA producer and paving contractor:Omann Brothers • Second source of grant funding:Hennepin County Lead By Example Program • Key partner: Mn/DOT

  3. Who’s Who(continued) • In-kind field support and technical assistance:Mn/DOT and Hennepin County DOT • Third source of grant funding:Dakota County • Additional lab work: Professor Mihai Marasteanu, U of MN Dept. of Civil Engineering • Coordination and project management services: SWMCB via DKA

  4. Project Objectives • Test tear-off RAS in wear course • Compare tear-off RAS vs. manufacturers’ RAS vs. virgin only HMA • No RAP in any test mix • Continue analysis of cost savings potential

  5. Shingles Grinding by Omann • ½-inch minus • G.L. Roofing Company provided 12 tons of clean, certified tear-off shingles • Written certification forms used to document compliance with state and federal rules • Nails removed by a series of magnets

  6. Shingles Grinding by Omann(continued) • Three stage grinding process • Nails removed by a series of magnets and a metal detector • July 18, 2006 observation by Mn/DOT and Hennepin County • RAS stockpiled for a month prior to use. “Fluffed” immediately prior to use in HMA plant.

  7. Omann Paving • August 22, 2006, Omann Brothers first graded and then compacted the gravel road in preparation for paving • August 23, 2006, the base course of hot-mix asphalt was applied • August 25 , 2006 the wear course was applied

  8. Observations of Pavement Performance To-Date • Mn/DOT has conducted two field surveys • March 2007 • September 17, 2007 • Cracking • No observed pre-mature cracking • Rutting • Using a FACE Dipstick® • Slight and irregular rutting with no significant difference between mix types

  9. Other Presentations and Video * Hassan / Omann Project web page onwww.ShingleRecycling.org

  10. For More Information • www.ShingleRecycling.org • Eddie Johnson, Mn/DOT: Unpublished report on Rutting “Dipstick” Survey (October 2007) • Jim McGraw, Mn/DOT: Power Point presentation to July 11, 2007 project close-out meeting • Mihai Marasteanu, U of MN: Power Point presentation to July 11, 2007 project close-out meeting • Debra Haugen, DKA: Final Report to LRRB (May 31, 2007)

  11. THANKS! Bill Boettner, Public Works SupervisorTown of Hassan763-525-6220Boettner@townofhassan.com www.TownOfHassan.com

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