Towards and Understanding of the Self Healing Capacity of Asphaltic Materials:
2011 (English)In: Heron, Vol. 56, no 1-2, 49-79 p.Article in journal (Refereed) Published
Theself-restoring orhealingcapacityof asphalt has been known for quite some time. Yet, to this date, there is no consensus of the fundamental mechanism underlying this phenomenon. In this paper a multi-scale model is presented which focuses on thehealingphenomenon from a thermodynamic point of view. In the model,healingof bituminousmaterialis simulated at the micro scale via a phase field model, utilizing a modified version of the Cahn Hilliard and Flory-Huggins equations. This model is then connected to a more general elasto- visco-plastic constitutive framework for the simulation of asphalt mixtures. The paper presents the developed hypothesis, the experimental evidence and summarizes some of the theoretical background. The model has been implemented in the 3D finite element system CAPA-3D and preliminary results are shown.
Place, publisher, year, edition, pages
2011. Vol. 56, no 1-2, 49-79 p.
IdentifiersURN: urn:nbn:se:kth:diva-84069OAI: oai:DiVA.org:kth-84069DiVA: diva2:499136
TSC import 1905 2012-02-10. QC 201203012012-02-132012-02-132012-03-01Bibliographically approved