National Road Research Alliance Geotechnical Team Update

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Presentation transcript:

National Road Research Alliance Geotechnical Team Update Terry Beaudry Reclamation/Grading Engineer

Geotechnical Team Members Robert Arndorfer, Wisconsin Department of Transportation Terry Beaudry Minnesota Department of Transportation Ken Darby, Caltrans – California Department of Transportation Richard Endres, Michigan Department of Transportation Tom Fennessey, Missouri Department of Transportation Jeff Horsfall, Wisconsin Department of Transportation Matt Kurle, North Dakota Department of Transportation Deepak Maskey, California Department of Transportation Kevin McLain, Missouri Department of Transportation Heather Shoup, Illinois Department of Transportation John Siekmeier, Minnesota Department of Transportation Andrew Stolba, Illinois Department of Transportation Colter Schwagler, North Dakota Department of Transportation

Geotechnical Update Long Term Research Determining Pavement Design Criteria for Recycled Aggregate Base and Large Stone Subbase PI: Bora Cetin Iowa State with University of Wisconsin Start November 2017 End: October 2020

Geotechnical Update Long Term Research Objectives/Goals: Determine field and laboratory performance Develop a method to estimate the stiffness and permeability of recycled bases and large stone designs. Develop pavement design and construction specifications for roadways built with recycled bases and large stone designs.

Phase 2 Research Geotechnical Project Contractor Mechanistic Load Restriction Decision Platform for Pavement Systems Prone to Moisture Variations University of New Hampshire Environmental Impacts on the Performance of Pavement Foundation Layers Iowa State University Permeability of Base Aggregate and Sand University of Wisconsin Improve material inputs into mechanistic design properties for reclaimed HMA Roadways

Geotechnical Talks Today 12:45 – 1:45 First Talk Environmental/Economic Analysis of the use of CIR, FDR, & SFDR Dan Wegman, Braun Intertec Second Talk Soil Stabilization Dave Rettner, American Engineering Testing

Geotechnical Talks Tomorrow 2:15-4:15 Intelligent Compaction for Grading Materials Soheil Nazarian, Univ. of Texas, El Paso Determining Pavement Design Criteria for Recycled Aggregate Base & Large Stone Subbase Bora Cetin, Iowa State Phase 2 Geotechnical Research Project Preview Bora Cetin, Iowa State & Eshan Dave, Univ. of NH Enhancing Project Delivery using Intelligent Compaction David White, Ingios