Analysis and Design of Airfield Pavements Using Laboratory Tests and Mechanistic-Empirical Methodology

This paper describes the use mechanistic-empirical pavement analyses together with material properties determined from laboratory tests to design and evaluate performance of thick lift hot mix asphalt (HMA) pavements for large commercial aircraft loadings. Key material properties for the HMA are obtained from shear (AASHTO T-320, ASTM D-7312) and flexural fatigue (AASHTO T-321, ASTM D-7460) tests. Use of shear test data to establish mix performance criteria for taxiways at the San Francisco International Airport (SFO) and mix design for the HMA used as the surface course for New Doha International Airport are briefly described. Examples of full depth HMA structural section design for wide body heavy aircraft (e.g., Boeing 747-400, Boeing 777-800, Airbus 380-800, and Airbus 350-800) are included. The long life pavement designs include use of conventional and modified binders for the HMA, rich bottom layers in the pavement sections, and flexural strain criteria based on laboratory fatigue tests for the HMA mixes. Associated with the design methodology is a discussion of construction considerations. Mix quality control including compaction requirements and limits on binder content and layer thickness variability as well as the use of tack coats for HMA multiple lift construction are discussed. In addition, preparation of the upper portion of the subgrade to insure proper HMA construction is discussed.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 17p
  • Monograph Title: 2010 FAA Worldwide Airport Technology Transfer Conference: Next Generation of Airport Technology

Subject/Index Terms

Filing Info

  • Accession Number: 01608287
  • Record Type: Publication
  • Files: TRIS, ATRI, USDOT
  • Created Date: Aug 19 2016 11:49AM