Literature survey on existing design methods for flexible pavements

Intermediate report of the CROW Working Group on D

  • Productgroep:Download / Rapport
  • Soort:Gratis uitgave
  • Datum uitgifte:01-06-2006
  • Grootte:2,39 MB
  • Bestand:PDF
  • Druk:1
  • Artikelnummer:D06-06
  • CROW Technology Platform has commissioned the Road and Railway Engineering Section (RRES) of the Faculty of Civil Engineering and GeoSciences of the Delft University of Technology to perform a literature survey on existing design methods for flexible pavements. This means a survey on design methods for pavements with asphalt top layers and a bound or unbound base course on a subgrade.

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    Appendix I
    Appendix II
  • 1 Introduction and purpose of the literature survey
    2 Overview of design methods
    2.1 Introduction
    2.2 COMPASS
    2.3 SAMDM
    2.4 AASHTO Design Guide
    2.5 CARE and ASCON
    2.6 French Design Manual
    2.7 KENLAYER
    2.9 SPDM
    2.10 Bound base
    2.11 CROW Design Procedure for Thin Asphalt Pavements
    2.12 Rubicon
    2.13 ECO-SERVE
    2.14 CIMpel
    2.15 Summary
    2.16 Concluding remarks
    3 Material properties and design criteria
    3.1 Introduction
    3.2 Reliability concept
    3.3 Asphalt layers
    3.3.1 Fatigue cracking
    3.3.2 Permanent deformation
    3.4 Bound base layers
    3.4.1 Material properties
    3.4.2 Fatigue cracking at bottom of base layer
    3.4.3 Strain at break at bottom of base layer
    3.4.4 Crushing at top of base layer
    3.4.5 Other criteria
    3.5 Unbound (sub-)base and subgrade
    3.5.1 Material properties
    3.5.2 Shear stress in granular (sub-)base layers
    3.5.3 Permanent deformation in unbound (sub-)base
    3.5.4 Permanent deformation in subgrade
    3.6 Other design criteria
    3.7 Concluding remarks
    4 Evaluation of models currently used and suggestions for a new CROW design system
    for asphalt pavements
    4.1 Introduction
    4.2 Characterisation of dynamic wheel loads
    4.3 Characterisation of contact pressures
    4.4 Application of linear-elastic multi-layer theory
    4.5 Material characterization
    4.5.1 Subgrade fatigue
    4.5.2 Unbound base materials
    4.5.3 Asphalt mixtures
    4.5.4 Cement treated materials and base materials bound with bitumen or mixtures
    of bituminous products and cement
    4.6 Material testing in relation to CEN requirements
    4.7 Skid resistance
    4.8 Noise
    4.9 Probabilistics
    5 Suggestions for the CROW Design System
Joan Ignatia
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