Modeling of asphalt and experiments with a discrete particles method

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

69 Downloads (Pure)

Abstract

Asphalt is an important road paving material. 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 layer 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 mesostructure and for rearrangements due to compaction and 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 model behaviour of asphalt pavements on the larger macro-scale.
Original languageEnglish
Title of host publicationProceedings MAIREPAV7 - 7th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, August 8 - 10, 2012, Utah, USA
EditorsD. Wilson, S. Costello, T. Henning, P. Black, C. Olsen
Place of PublicationAuckland
Pages1-10
Number of pages10
Publication statusPublished - 8 Aug 2012
Event7th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2012 - Auckland, New Zealand
Duration: 28 Aug 201230 Aug 2012
Conference number: 7

Conference

Conference7th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2012
Abbreviated titleMAIREPAV7
CountryNew Zealand
CityAuckland
Period28/08/1230/08/12

Keywords

  • METIS-288231
  • IR-80397

Fingerprint Dive into the research topics of 'Modeling of asphalt and experiments with a discrete particles method'. Together they form a unique fingerprint.

  • Cite this

    Ormel, T. J., Magnanimo, V., ter Huerne, H. L., & Luding, S. (2012). Modeling of asphalt and experiments with a discrete particles method. In D. Wilson, S. Costello, T. Henning, P. Black, & C. Olsen (Eds.), Proceedings MAIREPAV7 - 7th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, August 8 - 10, 2012, Utah, USA (pp. 1-10). Auckland.