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Influence of Mixture Properties on Fracture Mechanisms in Asphalt Mixtures
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Highway and Railway Engineering.ORCID iD: 0000-0003-0889-6078
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2010 (English)In: International Journal on Road Materials and Pavement Design, ISSN 1468-0629, Vol. 11, 61-88 p.Article in journal (Refereed) Published
Abstract [en]

This paper reports a research study aimed at providing insight into key mechanisms and mixture properties that influence fracture in asphalt concrete. The experimental analysis was based on the Hot Mix Asphalt (HMA) Fracture Mechanics visco-elastic crack growth law. HMA cracking mechanism was investigated using multiple laboratory test configurations on both unmodified and polymer modified mixtures. A Digital Image Correlation (DIC) was employed to more accurately capture localized or non-uniform stress distributions in asphalt mixtures and as a tool for detecting first fracture. Crack initiation and crack growth were predicted effectively using a Displacement Discontinuity (DD) boundary element method.

Place, publisher, year, edition, pages
2010. Vol. 11, 61-88 p.
Keyword [en]
Asphalt Mixture, HMA Fracture Mechanics, Digital Image Correlation (DIC), Displacement Discontinuity Method, SBS Polymer Modifier
National Category
Civil Engineering Materials Engineering
URN: urn:nbn:se:kth:diva-29707DOI: 10.3166/RMPD.11HS.61-88ISI: 000278058800004ScopusID: 2-s2.0-83455236991OAI: diva2:396987
QC 20110211Available from: 2011-02-11 Created: 2011-02-11 Last updated: 2011-02-11Bibliographically approved

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Birgisson, Björn
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Highway and Railway Engineering
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