Guide Specifications for the Construction of Chip Seals and Microsurfacing

Pavement preservation provides a means for maintaining and improving the functional condition of an existing highway system. Although pavement preservation is not expected to substantially increase structural capacity, it generally leads to improved pavement performance and longer service life. Chip seals, microsurfacing, and fog seals are frequently used as pavement preservation treatments on flexible pavements. Although a great deal of information on the design, materials, and construction practices of these treatments is available, there is no nationally accepted guidance on their construction. There was a need to develop guide construction specifications to help highway agencies apply chip seal, microsurfacing, and fog seal treatments more effectively and achieve the most benefit of their application. The objective of this research was to develop recommended guide specifications for the construction of chip seals, microsurfacing, and fog seals.

  • Record URL:
  • Supplemental Notes:
    • The research produced proposed guide specifications for chip seals, microsurfacing, and fog seals. These guide specifications will be considered by the appropriate AASHTO committees for possible incorporation in the AASHTO Guide Specifications for Highway Construction. A link to the contractor's final report is available at the Record URL.


  • English


  • Status: Completed
  • Funding: $150000
  • Contract Numbers:

    Project 14-37

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Hanna, Amir

  • Performing Organizations:

    Shuler Consultants, LLC

    Fort Collins, CO  United States 
  • Principal Investigators:

    Shuler, Scott

  • Start Date: 20160815
  • Expected Completion Date: 20180713
  • Actual Completion Date: 20180713
  • Source Data: RiP Project 40208

Subject/Index Terms

Filing Info

  • Accession Number: 01572391
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 14-37
  • Files: TRB, RIP
  • Created Date: Aug 7 2015 1:01AM