LTPP Data Analysis: Significance of As-Constructed Asphalt Pavement Air Voids to Pavement Performance

Research is needed to determine the effect of in-place air voids (i.e., density expressed as a percent of maximum theoretical density) on the performance of asphalt pavements through an analysis of field data from the Long-Term Pavement Performance (LTPP) program and other sources. The best evidence of the impact of in-place air voids on pavement performance comes from laboratory studies. The challenge will be to isolate the effect of in-place air voids from the other factors that can affect pavement performance. Interest in this subject is due to the perceived significance of in-place air voids on pavement performance, and to the fact that any cost associated with increased density during construction is much less than that of the maintenance, preservation, and rehabilitation needed to address reduced pavement life. The objective of this research is to determine the effect of in-place air voids on the performance of asphalt pavements using data from the LTPP program and other appropriate sources.

Language

  • English

Project

  • Status: Active
  • Funding: $450000
  • Contract Numbers:

    Project 20-15(18)

  • 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:

    Harrigan, Edward

  • Performing Organizations:

    National Center for Asphalt Technology

    277 Technology Pkwy
    Auburn, AL  United States  36830
  • Principal Investigators:

    Heitzman, Michael

  • Start Date: 20180401
  • Expected Completion Date: 20200101
  • Actual Completion Date: 0
  • Source Data: RiP Project 41740

Subject/Index Terms

Filing Info

  • Accession Number: 01640229
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-15(18)
  • Files: TRB, RiP
  • Created Date: Jul 1 2017 3:34AM