Road Research

Preventive Maintenance Team

The preventive maintenance team is comprised of technical experts in the area maintenance of concrete and asphalt roadways. Activities include prioritization of short and long term research, development of long term research test sections at MnROAD, and providing input for technology transfer.

Meeting minutes

PM Team meeting minutes are accessible on the Minnesota online asset management platform eDOCs. Minutes from previous meetings back to 2016 are available upon request.

NRRA Preventive Maintenance Efforts

Phase II Research Ideas - Funded

• Thinlay as a PM Treatment
• Flooded Pavement Toolkit Phase II with Geotech team
• Reclamation and Recycling Techniques to Achieve Perpetual Pavement Characteristics with Flexible, Geotech, and ICT teams

2019 Projects

• Spray on Rejuvenator Test Sections
• Bio-Materials Maintenance Treatments

2019 Synthesis

• Spray on Rejuvenator Synthesis - Complete
• Service Life Enhancement of Substrates Overlaid with Thin Overlays (UTWBC, Chip Seals & Microsurfacing) for each state - Complete
• Concrete Pavement Restoration (CPR) for Bonded Concrete Overlays of Asphalt - Complete

2017 Projects

• Effective Long Lasting PCC Partial Depth Joint Repairs for Challenging Conditions - Complete
• Maintaining Poor Pavements - Closed

2017 Synthesis

• Pavement Preservation Approaches for Lightly Surfaced Roadways - Complete
• Surface Characteristics of Diamond Ground PCC Surfaces

Pavement manual information

• Illinois DOT Pavement Preservation chapter (PDF)
• Minnesota DOT Pavement Preservation Manual (PDF), Feb. 2020

Specifications

• Polymer Scrub Seal (PDF) - July 19, 2016