MnDOT Road Research Update Maureen Jensen Benjamin Worel TRB January 17, 2013
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Transcript of MnDOT Road Research Update Maureen Jensen Benjamin Worel TRB January 17, 2013
MnDOTRoad Research Update
Maureen Jensen
Benjamin Worel
TRB January 17, 2013
MnDOTRoad Research Update - Outline
TERRA MnROAD International Pavement
Engineering Meeting at TRB International Exchanges
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
Transportation Engineering and Road
Research Alliance
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
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
MnROAD
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
GoalFind 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)
Beginning to Plan for 2016 Working with Research Partners & Customers
MnDOT LRRB TERRA FHWA
Continue to Develop Partnerships◦ Interested in your input
MnROAD Phase-III
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 Engineering Meeting at TRB
(Highlights - Sunday 12:00-2:00)
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
International Pavement Research Exchange