A Thermal Nonlinear Approach for Mechanistic Empirical Modeling of Asphalt-Granular Base Layers Interface

This article proposes a mechanistic model for the interface between the asphalt surface course and granular base layers, along with an experimental procedure to assess the model parameters. The Mohr-Coulomb yield criteria was used to model interface shear strength, and Goodman’s law was used to rela...

Full description

Saved in:
Bibliographic Details
Published in:Journal of testing and evaluation 2020-01, Vol.48 (1), p.223-234
Main Authors: Torquato e Silva, Samuel de Almeida, Scherer, Renan Gustavo, Soares, Jorge Barbosa, Pereira, Deividi da Silva, Specht, Luciano Pivoto
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This article proposes a mechanistic model for the interface between the asphalt surface course and granular base layers, along with an experimental procedure to assess the model parameters. The Mohr-Coulomb yield criteria was used to model interface shear strength, and Goodman’s law was used to relate the relative displacement and shear stress over the interface that bonds the investigated layers. Moreover, the transversal reaction modulus was assumed to be stress dependent, which makes the model nonlinear. Experimental results have shown agreement with model assumptions. Furthermore, a simulation of Cracked Area evolution was performed to verify the effects of the interface model on the pavement structural response. Finally, the model proposed presented itself to be a strong alternative to properly consider the mechanical behavior of the asphaltic-granular base layers interface.
ISSN:0090-3973
1945-7553
DOI:10.1520/JTE20180931