High Tire Pressure and Temperature Effects on Hot Mix Asphalt Concrete Permanent Deformation Using Customized Asphalt Pavement Analyzer (APA)

New pavement standards are needed due to the advent of newer aircraft exceeding the current International Civil Aviation Organization (ICAO)’s 217 psi (1.50 MPa) tire pressure limit. The Federal Aviation Administration (FAA) owns a customized Asphalt Pavement Analyzer (APA) which can apply higher tire pressures and loads for aircraft loading conditions. Cores with 6 inches (152 mm) diameter by 3 inches (76 mm) high were taken from the FAA’s National Airport Pavement Test Facility (NAPTF) high tire pressure area and prepared for tests at two different contact pressures of 100 psi and 250 psi using the customized APA. The test was also performed at two different temperatures of 70°F and 140°F. The APA test results were analyzed in terms of rut depth and rut slope with different tire pressures and temperatures. The recorded rut depth measurements by the APA were compared and confirmed by manual measurements after the testing. The gradation of the Hot Mix Asphalt (HMA) mix in the cores is provided with test results. The results show that the rut depth increased significantly with higher contact pressures and temperatures. Also, the permanent deformation was more sensitive to temperature than to the contact pressure changes.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 14p
  • Monograph Title: 2010 FAA Worldwide Airport Technology Transfer Conference: Next Generation of Airport Technology

Subject/Index Terms

Filing Info

  • Accession Number: 01608406
  • Record Type: Publication
  • Files: TRIS, ATRI, USDOT
  • Created Date: Aug 7 2016 9:39AM