Granular base moduli for mechanistic pavement design

Erol Tutumluer, Marshall R. Thompson

Research output: Contribution to conferencePaperpeer-review


Simple stress dependent granular material models are proposed to predict the aggregate cross-anisotropic responses observed in flexible airport pavements. A cross-anisotropic representation has different material properties (i.e., elastic modulus and Poisson's ratio) assigned in the horizontal and vertical directions. Repeated load triaxial tests with vertical and lateral deformation measurements are used for establishing these anisotropic properties. Flexible pavement responses predicted under one wheel of the Boeing 777-200A aircraft using the anisotropic model are found to be higher than LEDFAA response variables. A sensitivity analysis shows, in general, that as aggregate base horizontal and shear stiffnesses increase, the critical pavement responses decrease to some extent.

Original languageEnglish (US)
Number of pages15
StatePublished - 1997
EventProceedings of the 1997 Airfield Pavement Conference - Seattle, WA, USA
Duration: Aug 17 1997Aug 20 1997


OtherProceedings of the 1997 Airfield Pavement Conference
CitySeattle, WA, USA

ASJC Scopus subject areas

  • General Engineering


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