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Towards a Multi-scale Framework to Optimize Ageing Resistance of Asphaltic Materials
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0003-3968-6778
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0003-0889-6078
2013 (English)In: Multi-Scale Modeling and Characterization of Infrastructure Materials: Proceedings of the International RILEM Symposium Stockholm, June 2013 / [ed] Niki Kringos, Björn Birgisson, David Frost, Linbing Wang, Springer Netherlands, 2013, , 434 p.285-295 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes an ongoing research project that is aiming at developing a comprehensive multi-scale approach to optimize the ageing resistance of asphaltic mixtures. In this, ageing has been focused on oxidative ageing, but allows future extension to other ageing mechanisms. The developed framework considers three different scales: the nano, micro and meso-scale which are defined as the bitumen phase, the mastic phase and the mixture phase, respectively. In nano-scale, atomic force microscopy and calorimetry are coupled to each other to give insight into how bitumen phase separation evolves and the mobility of microstructure changes with temperature and ageing. On the micro-scale, the energy dissipation as a function of ageing is measured and coupled to the phase behavior information from the nano-scale. On the meso-scale a morphology framework is defined, capable of identifying the dominant mixture morphology parameters that control mixture performance under ageing conditions. By coupling the three scales, the dominant parameters that control ageing of asphaltic mixtures can be defined, modeled and analyzed and as such a tool is created that has the potential of enhancing the sustainability of asphaltic mixtures.

Place, publisher, year, edition, pages
Springer Netherlands, 2013. , 434 p.285-295 p.
Series
RILEM Bookseries, ISSN 2211-0844 ; Vol. 8
Keyword [en]
Ageing, Multi-scale framework, Microstructure, Dissipated energy, Mixture morphology
National Category
Infrastructure Engineering
Research subject
SRA - Transport; Järnvägsgruppen - Infrastruktur
Identifiers
URN: urn:nbn:se:kth:diva-123702DOI: 10.1007/978-94-007-6878-9_21ISBN: 978-94-007-6877-2 (print)ISBN: 978-94-007-6878-9 (print)OAI: oai:DiVA.org:kth-123702DiVA: diva2:628828
Conference
International RILEM Symposium; Stockholm, Sweden, 10-13 June, 2013
Note

QC 20140227

Available from: 2013-06-14 Created: 2013-06-14 Last updated: 2014-02-27Bibliographically approved

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Kringos, NikiBirgisson, Björn

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