DESIGN METHOD FOR FLEXIBLE AIRFIELD PAVEMENTS

A design method for flexible airfield pavements is discussed. The method is based on correlations of performance data of numerous full-scale accelerated traffic test pavements and computed critical stresses and strains of test pavements. The test pavements consisted of conventional flexible pavements and full-depth asphaltic concrete pavements. The loadings include single and multiple wheels. The stresses and strains in the pavement structures were computed by the finite-element technique incorporated with nonlinear stress-strain relations of pavement materials. Limiting criteria considered include radial tensile strains at the bottom of asphaltic concrete, maximum radial tensile strains and minimum ration of radial tensile stress to vertical stress in the unbound granular layers, and vertical strains at the subgrade surface. The second criterion was developed only for single-wheel loads. The principle of superposition was used in the computations for multiple-wheel loads. The salient features of the design method are discussed, and limiting criteria are applied to the design of pavements and evaluation of pavement performance under mixed traffic and with overlays.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 1-13
  • Monograph Title: Asphalt concrete pavement design and evaluation
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00095728
  • Record Type: Publication
  • ISBN: 0309023661
  • Files: TRIS, TRB
  • Created Date: Jul 2 1975 12:00AM