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Mn/DOT’s Perspective on Shingle Recycling. March 4, 2004 Roger Olson, Research Operations Engineer. Building upon ongoing research and development efforts by Mn/DOT, OEA and RMRC. In cooperation with the SWMCB’s Shingle Recycling Project. Shingle - History. Mn/DOT tests

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Mn dot s perspective on shingle recycling

Mn/DOT’s Perspective on Shingle Recycling

March 4, 2004

Roger Olson,

Research Operations Engineer

Building upon ongoing research and development efforts by Mn/DOT, OEA and RMRC


In cooperation with the swmcb s shingle recycling project

In cooperation with the SWMCB’s Shingle Recycling Project


Shingle history
Shingle - History

  • Mn/DOT tests

    (with University of Minnesota)

  • Willard Munger Trail (1990)

  • Hwy 25south of Mayer, MN (1991)

  • Scott County Hwy 17 south of Shakopee, MN (1991)


Scrap asphalt shingles
Scrap Asphalt Shingles

  • Mn/DOT’s most recent specifications,Combined 2360 / 2350, allows 5% manufactured shingle scrap in hot mix

  • Shingles considered as RAP

  • At discretion of HMA producer


Shingle processing
Shingle Processing

  • Can be added like recycled asphalt pavement (RAP)

  • Steps include: grinding, sizing and grading

  • Contaminants must be removed

  • Certification of supply required

  • Manufactured waste only at this time


Previous and ongoing r d
Previous and Ongoing R&D

  • Phase One: Research, Development, Field Demonstrations  Specification

  • Phase Two: Market Development Project

  • Phase Three: RMRC-funded Field Demonstrations and Technology Transfer, emphasis on “Tear Off” Scrap


Th 25 test section since 1991
TH 25 Test Section (Since 1991)



Ongoing mn dot shingle project co sponsored by
Ongoing Mn/DOT Shingle Project Co-Sponsored By:

  • Minnesota Office of Environmental Assistance (OEA)

  • Recycled Materials Resource Center (RMRC)


For more information
For More Information

Roger Olson

651-779-5517

[email protected]


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