Comparison of Some Pavement Design Methods from a Fatigue Point of View: Effect of Fatigue Properties of Asphalt Materials

The paper presents a comparison between the principle international flexible pavement design methods based on fatigue material properties. Four methods were studied for the design of two pavement sections. Laboratory tests showed an enormous difference between the fatigue and the complex modulus res...

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Bibliographic Details
Published in:Road materials and pavement design 2010-01, Vol.11 (4), p.833-861
Main Authors: Perraton, Daniel, Baaj, Hassan, Carter, Alan
Format: Article
Language:English
Subjects:
AASHTO'93
Applied sciences
Asphalt Institute
Asphalt pavements
Bitumen. Tars. Bituminous binders and bituminous concretes
Buildings. Public works
Compliance
Computation methods. Tables. Charts
Exact sciences and technology
Fatigue
Flexible Pavement Design
French Method
Materials
MEPDG
Methods
Road construction. Pavements. Maintenance
Roads & highways
SMA
Software
Structural analysis. Stresses
Studies
Surfacing
Traffic
Transportation infrastructure
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Summary:The paper presents a comparison between the principle international flexible pavement design methods based on fatigue material properties. Four methods were studied for the design of two pavement sections. Laboratory tests showed an enormous difference between the fatigue and the complex modulus results for the two asphalt mixes used in the base course (Stone Matrix Asphalt: SMA, and EB14: reference mix). The required thickness of the base course changes depending on the pavement design method used. Despite the laboratory results, certain methods showed no difference in thickness of the base course for the two asphalt base mixes while others showed an important difference and proves the benefit of the material's fatigue performance. Discussions underlined that the complex modulus of an asphalt material should not be used as a performance indicator to predict the fatigue life of that material.
ISSN:1468-0629
2164-7402
DOI:10.1080/14680629.2010.9690309