Minnesota Department of Transportation

511 Travel Info

Road Research

NRRA Flexible Team

Orange barrels on a highway

Flexible Team

The flexible team is comprised of technical experts in the area of new and rehabilitation of asphalt roadways. Activities include prioritization of short and long term research, development of long term research test sections at MnROAD and providing input to the technology transfer team on what should be marketed.

Current Projects and Resources

Team Research Development

Tech Transfer Write-ups

  1. Longitudinal Joint Construction Performance (NRRA Original Statement) - March 2017 (WORD)
  2. Tack Coats (NRRA Original Statement) - Draft August 5th (WORD)
  3. HMA Performance Testing (Aug. 2016) (WORD)

Long Term Research Write-ups

  1. Developing Best Practices for Rehabilitation of Concrete with Hot Mix Asphalt (HMA) Overlays related to Density and Reflective Cracking
  2. Cold Central Plant Recycling (CCPR)
  3. Performance Testing - Draft Working Document for all HMA mixes--July 11, 2017 (WORD)
    1. HMA Draft Sampling Plan--July 11, 2017 (spreadsheet)

MnROAD Test Cell Background Information

Cell Maps

Laboratory Asphalt Mixture Aging Procedures

Topics (Newsletter, Research Pays Off, videos)


Meeting Notes/Action Items

Meetings are held the first and third Wednesday of every month, 10:00 a.m. -11:00 a.m. Note that meeting dates/times may change depending on member schedules and holidays.