Research

TERRA-Initiated Research

Projects and initiatives are divided into two categories. TERRA-initiated research activities are planned and initiated through the TERRA Board. TERRA-related research activities are carried out by member and partner organizations and are related to TERRA strategic goals, but have no direct involvement with the TERRA Board.

The TERRA-initiated projects include a number of active pooled-fund projects through the FHWA Transportation Pooled Fund (TPF) Program. The pooled-fund program enables stakeholders to leverage their resources by working together on topics that have widespread interest.

Active

The following TERRA-initiated projects are part of the Phase Two Research Initiative at MnROAD. Project partners are listed following the project title.

• Composite Pavements Systems
  Strategic Highway Research Program 2, Applied Research Associates, Inc., University of Minnesota, University of California Davis, Mn/DOT
• Concrete Pavement Optimization—Determining the Lower Threshold of Slab Thickness for High-Volume Roads
  Mn/DOT
• Design and Construction Guidelines for Thermally Insulated Concrete Pavements*
  California DOT, Mn/DOT, Washington DOT, Minnesota LRRB, Federal Highway Administration
• Development of Design Guide for Thin and Ultrathin Concrete Overlays of Existing Asphalt Pavements*
  Mn/DOT, Mississippi DOT, Missouri DOT, New York DOT, Pennsylvania DOT, Texas DOT
• Field Investigation of Highway Base Material Stabilized with High Carbon Fly Ash
  Bloom Consulting, University of Wisconsin, U.S. Department of Energy
• Stabilized Full-Depth Reclamation Study
  SemMaterials, Mn/DOT
• HMA Surface Characteristics Related to Ride, Texture, Friction, Noise, Durability
  Minnesota LRRB, Mn/DOT, Federal Highway Administration
• Investigation of Low Temperature Cracking in Asphalt Pavements–Phase II*
  Connecticut DOT, Iowa DOT, Mn/DOT, New York DOT, North Dakota DOT, Wisconsin DOT, Minnesota LRRB
• MnROAD Field Investigation of Polyphosphoric Acid Modified Asphalt
  Mn/DOT, Ergon Inc., ICL Performance Products, Innophos, Inc., Federal Highway Administration, MTE Services
• PCC Surface Characteristics–Construction
  Mn/DOT, Federal Highway Administration
• PCC Surface Characteristics–Rehabilitation*
  Mn/DOT, Texas DOT, International Grooving and Grinding Association, American Concrete Pavement Association, Federal Highway Administration
• Performance of Thin Unbonded Concrete Overlays on High-Volume Roads
  Concrete Paving Association of Minnesota, American Concrete Pavement Association, Mn/DOT
• Permeable HMA Pavement Performance in Cold Regions
  Minnesota LRRB, Mn/DOT
• Pervious Concrete Mix Design for Wearing Course Applications
  Center for Transportation Research and Education, Mn/DOT
• Pervious Concrete Pavement Study
  Minnesota LRRB, Mn/DOT
• Optimal Timing for Preventive Maintenance for Addressing Environmental Aging in HMA Pavements*
  Maryland DOT, Mn/DOT, Ohio DOT, Texas DOT, Minnesota LRRB
• Asphalt Pavements with Higher RAP Content
  Minnesota LRRB, Mn/DOT
• Recycled Unbound Pavement Materials*
  California DOT, Michigan DOT, Mn/DOT, Ohio DOT, Texas DOT, Wisconsin DOT
• Long-Life Concrete Pavement—Performance Model Development
  Mn/DOT
• The Effects of Implements of Husbandry “Farm Equipment” on Pavement Performance*
  Iowa DOT, Illinois DOT, Mn/DOT, Minnesota LRRB, Professional Nutrient Applicators Association of Wisconsin
• Tie Bar Study
  Center for Transportation Research and Education, Mn/DOT
• Use of Taconite Aggregates in Pavement Applications
  Natural Resources Research Institute, Mn/DOT

Completed

• MnROAD Lessons Learned
  Lev Khazanovich, University of Minnesota Dept. of Civil Engineering