Minnesota Department of Transportation

511 Travel Info

Road Research

Research Topics

Repairing concrete


Phosphorus Nuclear Magnetic Resonance Testing of Asphalt Binders
Asphalt Design Process
Low Temperature Cracking/Performance Test
Asphalt Overlays
Recycled Asphalt Pavements/Shingles (RAP)
Warm Mix Asphalt
Longitudinal Construction Joints
Asphalt Binder Modification
Surface Characteristics HMA
Permeable HMA


High Performance PCC Design (60-Year)
Thin Concrete Design
Concrete Bonded Overlays
Concrete Unbonded Overlays
Thin Concrete Overlays
Whitetopping (PCC Overlays of Existing HMA)
Composite Pavement Systems
Compacted Concrete (RCC)
PCC Surface Characteristics (New Construction)
Pervious Concrete (Pavements)
Pervious Concrete (Overlay)

Grading and Base

High Carbon Fly Ash Stabilization
Full Depth Reclamation
Recycled Unbound Materials
Resilient Modulus

Pavement Preservation

HMA Optimal Timing of Preventative Maintenance
HMA Crack Sealing
HMA Micro Surfacing
HMA Chip Seals
Seal Coat Design Program
PCC Joint Sealing
PCC-Diamond Grinding
PCC Partial Depth Repairs
PCC Full Depth Repairs
PCC Sealers
National Efforts - NCAT/MnROAD

Topic Specific - General Studies

Taconite for Pavement Applications
Implements of Husbandry (Farm Equipment) on Pavements
Wide-Based Tires
Ground Penetrating Radar
Seasonal Load Limits
Intelligent Compaction and Advanced Technology
Pavement Noise
Traffic Sign Reflectivity
Rubble Strips
Gravel Roads
Rolling Resistance