Asphalt durability and self-healing modelling with discrete particles approach

V. Magnanimo, H.L. ter Huerne, S. Luding

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)
183 Downloads (Pure)

Abstract

Asphalt is an important road paving material, where besides an acceptable price, durability, surface conditions (like roughening and evenness), age-, weather- and traffic-induced failures and degradation are relevant aspects. In the professional road engineering branch empirical models are used to describe the mechanical behaviour of the material and to address large-scale problems for road distress phenomena like rutting, ravelling, cracking and roughness. The mesoscopic granular nature of asphalt and the mechanics of the bitumen between the particles are only partly involved in this kind of approach. The discrete particle method is a modern tool that allows for arbitrary (self-)organization of the asphalt meso-structure and for rearrangements due to compaction/cyclic loading. This is of utmost importance for asphalt during the construction phase and the usage period, in forecasting the relevant distress phenomena and understand their origin on the grain-, contact-, or molecular scales. Contact models that involve visco-elasticity, plasticity, friction and roughness are state-of-the art in fields like particle technology and can now be modified for asphalt and validated experimentally on small samples. The ultimate goal is then to derive micro- and meso-based constitutive models that can be applied to modellingbehaviour of asphalt pavements on the larger scales. Using the new contact models, damage and crack formation in asphalt and their propagation can be modeled. Furthermore, the possibility to trigger self-healing in the material can be investigated from a micromechanical point of view
Original languageEnglish
Title of host publication7th RILEM International Conference on Cracking in Pavements
Subtitle of host publicationMechanisms, Modeling, Testing, Detection and Prevention Case Histories
EditorsA. Scarpas, N. Kringos, I. Al-Qadi, A. Loizos
Place of PublicationDordrecht, the Netherlands
PublisherSpringer
Pages1103-1114
ISBN (Electronic)978-94-007-4566-7
ISBN (Print)978-94-007-4565-0
DOIs
Publication statusPublished - 20 Jun 2012
Event7th RILEM International Conference on Cracking in Pavements 2012 - Delft, Netherlands
Duration: 20 Jun 201222 Jun 2012
Conference number: 7

Publication series

NameRILEM bookseries
PublisherSpringer
Volume4
ISSN (Print)2211-0844

Conference

Conference7th RILEM International Conference on Cracking in Pavements 2012
CountryNetherlands
CityDelft
Period20/06/1222/06/12

Keywords

  • METIS-292045
  • IR-84269

Fingerprint

Dive into the research topics of 'Asphalt durability and self-healing modelling with discrete particles approach'. Together they form a unique fingerprint.

Cite this