Synthesis of Information Related to Highway Practices. Topic 55-14. Maintenance Practices for Wide Cracks and Joints in Flexible and Composite Pavements

Existing flexible pavement maintenance programs of many state departments of transportation (DOTs) typically involve two kinds of activities: sealing cracks and patching. However, the strategies employed by maintenance crews depend on the width and the severity of the crack and the underlying pavement structure. Wide flexible pavement cracks are frequently larger than those typically repaired by crack or joint sealing efforts but are smaller than repairs requiring remove-and-replace patching procedures. Repairs of these types of distresses with materials such as flexible asphalt-based mastics, sand asphalt, or other patching materials have been shown to extend pavement service life. Engineered products, such as mastics, typically consist of polymer or rubber-modified asphalt binder systems combined with mineral fillers or fine aggregates. Experience has shown that engineered products can provide substantially better performance than more traditional solutions, such as sand asphalt, for wide flexible pavement cracks. Mastic-type materials may be combined with repair techniques such as micro-milling or routing to remove loose pavement material and provide an adequate reservoir to receive the repair material. State DOTs have developed evaluation and approval programs for assessment of available and emerging maintenance materials, and methods of application. The objective of this synthesis is to document practices used by state DOTs for flexible and composite pavement maintenance for wide transverse and longitudinal cracks and joints.

• Record URL:
  http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=5487

Language

• English

Project

• Funding: $55000
• Contract Numbers:

  Project 20-05, Topic 55-14

• Sponsor Organizations:

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001

  American Association of State Highway and Transportation Officials (AASHTO)

  444 North Capitol Street, NW
  Washington, DC  United States  20001

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Project Managers:

  Larson, Sandra

• Performing Organizations:
  ,   Germany 

  Applied Pavement Technology, Incorporated

  115 W. Main Street
  Suite 400
  Urbana, IL  United States  61801
• Principal Investigators:

  Peshkin, David

• Start Date: 20240723
• Expected Completion Date: 0
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Mastic asphalt; Pavement cracking; Pavement joints; Pavement maintenance; State departments of transportation; State of the practice
• Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01886947
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 20-05, Topic 55-14
• Files: TRB, RIP
• Created Date: Jul 3 2023 10:10AM