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MnDOT Road Research Update Maureen Jensen Benjamin Worel TRB January 17, 2013. MnDOT Road Research Update - Outline. TERRA MnROAD International Pavement Engineering Meeting at TRB International Exchanges. Transportation Engineering and Road Research Alliance. TERRA formed in 2004
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MnDOT Road Research Update Maureen Jensen Benjamin Worel TRB January 17, 2013
MnDOTRoad Research Update - Outline • TERRA • MnROAD • International Pavement Engineering Meeting at TRB • International Exchanges
Transportation Engineering and Road Research Alliance • TERRA formed in 2004 • Helped develop Phase-II • Government, industry and academia members • MnROAD Benefits • Attracts key public, industry, academic partners contributions • Participation in future initiatives- better results, implementation
TERRA Activities • Research and Implementation • Roundabouts, Concrete Overlays, Porous Asphalt, • Engagement • Funded $653,000 projects, Tomas Wiennerholt MN Visit • Communication and Outreach • 220 People TERRA Research Conference – St Paul • TERRA Innovation Series – Houghton • Webinars • Fact Sheets
MnROAD • History • Phase I (1994-2006) • Phase II (2007-present) • Phase III (~2016) • Ongoing Monitoring • Performance Data • Sensors • Database / Data Release 2.0 • Completing Phase-II Research Studies • 2012/2013 Construction • 2016 Effort
2012 MicroSurfacing - Cell 1 • 6” HMA over 33” Class-4 (1993) • Severe transverse & Longitudinal wheel path • (2006) Right lane:1½ inch mill & fill PG 52 - 34 Goal Find a better “cheap fix” for worn out pavements
MicroSurfacing - June 2012 • 3 Layer System • tack coat / scratch coat / final surface • Type II Granite • 6% Kraton polymer modified asphalt • instead of 3% post added latex • PG 49-34 Base asphalt • instead of typical PG 64-22 (initially tried at MnROAD in 2006)
MicroSurfacing Ride Results • Before Micro • Right lane 126 in/mi • Left lane 190 in/mi • After Micro • Right lane 95 in/mi • Left lane 96 in/mi • September @ 3 months • Right lane 100 in/mi (21% improvement) • Left lane 99 in/mi (48% improvement)
MnROAD Phase-III • Beginning to Plan for 2016 • Working with Research Partners & Customers • MnDOT • LRRB • TERRA • FHWA • Continue to Develop Partnerships • Interested in your input
International Pavement Engineering Meeting at TRB(Highlights - Sunday 12:00-2:00) • Ground Penetrating Radar • FHWA – Tom Yu • Norway – Anne Lalague • MnDOT – Shongtao Dai • LTA – Experiences and Implementation • Swedish mining road test sections • International Design Comparison • Swedish Road Maintenance Performance Standard and the Web-PMS tool
International Pavement Research Exchange • Tomas Wiennerholt(3 week visit – Nov 2012) • Ben Worel (3 week visit – June 2013) • BCRRA Conference • International Flexible Design Comparison • Norway – Sweden – Denmark Visits • MnROAD Research and Operations • Low Temperature Cracking investigation • Warrantees, FWD quality control, stabilization, WIM, HVS • Pervious Pavements, Traffic Speed Deflectometer, climate change