Bill Rosener, Executive Vice President, Asphalt Paving Association
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Transcript Bill Rosener, Executive Vice President, Asphalt Paving Association
RECYCLED ASPHALT
SHINGLES IN
HOT MIX ASPHALT
CASE STUDIES OF NEW STATE
SPECIFICATIONS AND IMPLEMENTATION
Bill Rosener
Executive Vice President
Asphalt Paving Association of Iowa
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
Waste Commission of Scott Co.
Shingle Grinding Operation
RAS History in Iowa
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
Recycled Shingles are Good for
Asphalt
High Asphalt Cement Content 30% by weight
High grade aggregate
Fibers
Lime Dust (natural anti-strip)
McCarthy / Scott Co Waste Demo
McCarthy / Scott Co Waste Demo
McCarthy / Scott Co Waste Demo
Des Moines Asphalt / Polk Co
RAS and WMA Demo
Des Moines Asphalt / Polk Co
RAS and WMA Demo
Des Moines Asphalt / Polk Co
RAS and WMA Demo
Determann Asphalt / IDOT
Demo
Determann Asphalt / IDOT
Demo
Determann Asphalt / IDOT
Demo
Determann Asphalt / IDOT
Demo
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
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
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
Questions?
www.APAI.net