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Bill Rosener Executive Vice President Asphalt Paving Association of Iowa

Bill Rosener Executive Vice President Asphalt Paving Association of Iowa. Recycled Asphalt Shingles in Hot Mix Asphalt Case Studies of New State Specifications and Implementation. Introduction. New guy on the job last year Credit to those that deserve it:

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Bill Rosener Executive Vice President Asphalt Paving Association of Iowa

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  1. Bill Rosener Executive Vice President Asphalt Paving Association of Iowa Recycled Asphalt Shingles in Hot Mix AsphaltCase Studies of New State Specifications and Implementation

  2. Introduction • New guy on the job last year • Credit to those that deserve it: Scott Schram, IDOT Bituminous Engineer Dr. Chris Williams, ISU Associate Professor • Waste Commission of Scott County • APAI Contractors

  3. Waste Commission of Scott Co. Shingle Grinding Operation

  4. RAS History in Iowa

  5. APAI Role • Facilitator between contractors and IDOT • Three Open House Demonstrations in 2009 • Featured at Greater Iowa Asphalt Conference 500 Attendees • Featured at six Regional Conference Meetings 200 Attendees • Participate in this excellent webinar • Three RAS Workshops in 2010 across Iowa • Three Open House Demos planned for 2010

  6. Recycled Shingles are Good for Asphalt • High Asphalt Cement Content 30% by weight • High grade aggregate • Fibers • Lime Dust (natural anti-strip)

  7. McCarthy / Scott Co Waste Demo

  8. McCarthy / Scott Co Waste Demo

  9. McCarthy / Scott Co Waste Demo

  10. Des Moines Asphalt / Polk CoRAS and WMA Demo

  11. Des Moines Asphalt / Polk CoRAS and WMA Demo

  12. Des Moines Asphalt / Polk CoRAS and WMA Demo

  13. Determann Asphalt / IDOTDemo

  14. Determann Asphalt / IDOTDemo

  15. Determann Asphalt / IDOTDemo

  16. Determann Asphalt / IDOTDemo

  17. Marketplace Determines Feasibility • Contractors see potential for cost savings • Contractors see “green” benefits • Contractors see risk (DNR / OSHA) • IDOT sees benefits in lower prices and green initiative • IDOT places specification burden on RAS suppliers thus allowing contractors to try using RAS before becoming recyclers themselves

  18. Conclusions • APAI’s role is facilitator between contractors and public agencies including IDOT, county, city and consulting engineers • IDOT is the “rule maker” for all of Iowa • RAS is beneficial to asphalt • The success of RAS will ultimately depend on the marketplace and regulatory agencies

  19. Thank yous • Scott Schram, IDOT Bituminous Engineer • Dr. Chris Williams, ISU Associate Professor • Waste Commission of Scott County • APAI Contractors • CMRA • Dan Krivit, Foth Engineering

  20. Questions? www.APAI.net

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