Micromechanical modelling of porous asphalt mixes at high temperatures

Book chapter (2020)

Authors

K. Anupam Pavement Engineering -

H. Zhang Pavement Engineering -

Athanasios Scarpas Pavement Engineering -

C. Kasbergen Pavement Engineering -

S. Erkens Pavement Engineering -

H. Wang Pavement Engineering -

P. Apostolidis Pavement Engineering -

Research Group

Pavement Engineering () (TU Delft)

To reference this document use:

http://resolver.tudelft.nl/uuid:bb51e287-51dc-4753-b9ee-89c0b9a2c7bc

More Info

expand_more

Published Date

2020

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Pavement Engineering

Abstract

Micromechanical modelling has been widely used to predict the properties of asphalt mixes. In comparison to numerical micromechanical models, analytical micromechanical models have the benefits of consuming much less time and facilities. The most commonly used analytical micromechanical models are the Eshelby-based micromechanical models. However, without the consideration of particles’ interactions, these models fail to accurately predict the properties of asphalt mixes, especially at high temperatures. In porous asphalt (PA) mixes, due to the formation of an interconnected aggregate network, the particles’ interactions under a compressive loading condition at high temperatures mainly refer to the packing effects. In order to describe the behavior of packed aggregates in PA mixes, Walton’s model which predicts the effective moduli of a pack of spherical particles is possible to be a suitable way. However, to the best of authors’ knowledge, this model has not been utilized for asphalt mixes. Therefore, this paper aims to investigate the application of Walton’s model for predicting the properties of PA mixes at high temperatures.