A Comparison of AASHTO and SHELL Methods in Flexible Pavement Design Using ABAQUS Software

Document Type : Original Article

Authors

1 Associate professor, Department of Civil Engineering, Imam Khomeini International University (IKIU), Qazvin, Iran.

2 M.Sc., Graduate, College of Engineering, Islamic Azad University, Bushehr, Iran.

3 Ph.D. Student, College of Civil Engineering, Iran University of Science and Technology, Tehran, Iran.

Abstract

In this study asphalt pavement design and modeling were investigated by AASHTO and SHELL methods which are under the circumstances of Iran (traffic, road condition and climate). The inputs of the modeling are mechanical properties (such as density, modulus of elasticity, effective resilient modulus, friction angle, etc.), specifications of axle loads (loads on pavements) and climate conditions. A finite element software ABAQUS 6-10 was used in this study. After comparing the results of the modeling and design methods, it was found that pavement layer thicknesses obtained by the AASHTO method which chooses thinner layer of asphalt are more economical and optimal than SHELL method.

Keywords

References

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Journal of Transportation Research
Volume 15, Issue 4
December 2019
Pages 375-389

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