Development of a Field Test to Determine Chip Seal Aggregate Embedment

Chip seal aggregate embedment has a significant influence on chip seal performance. Too little embedment can cause raveling and too much embedment can lead to bleeding. In both situations, safety and performance are compromised. Proper aggregate embedment shall be evaluated as a critical factor when considering a chip seal treatment's design, construction, and performance. Research is needed to develop a field test method(s) to measure chip seal aggregate embedment rapidly and accurately. The objective of this research is to identify, adapt, or develop a rapid field test method(s) to determine the percentage embedment depth of a uniformly placed chip seal of known aggregate gradation. The term "rapid" for this project refers to a test method(s) that can be used as part of the quality control (QC) process, and can provide its results after the initial chip seal sweeping, allowing for real-time adjustments during the construction process.


  • English


  • Status: Active
  • Funding: $400000
  • Contract Numbers:

    Project 10-124

  • 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:

    Barcena, Roberto

  • Performing Organizations:

    Auburn University

    National Center for Asphalt Technology
    310 Sanford Hall
    Auburn, Alabama  United States  36849-5131
  • Principal Investigators:

    Vargas-Nordcbeck, Adriana

  • Start Date: 20240322
  • Expected Completion Date: 20270321
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01846743
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 10-124
  • Files: TRB, RIP
  • Created Date: May 24 2022 10:25AM