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Determination and prediction of crack patterns in hot mix asphalt (HMA) mixtures
Department of Civil and Coastal Engineering, University of Florida, United States.ORCID iD: 0000-0003-0889-6078
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2008 (English)In: Engineering Fracture Mechanics, ISSN 0013-7944, E-ISSN 1873-7315, Vol. 75, no 3-4, 664-673 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a comparison between predicted and measured crack patterns developing in hot mix asphalt (HMA) mixtures during common fracture tests. A digital image correlation (DIC) System was applied to obtain displacement/strain fields and for detecting crack patterns. The resulting cracking behavior was predicted using a displacement discontinuity boundary element method to explicitly model the microstructure of HMA. The predicted fracture initiation and crack propagation patterns are consistent with observed cracking behavior. The results imply that fracture in mixtures can be modeled effectively using a micro-mechanical approach and that crack propagation patterns can be captured using the DIC System.

Place, publisher, year, edition, pages
2008. Vol. 75, no 3-4, 664-673 p.
Keyword [en]
hot mix asphalt mixtures, digital image correlation, displacement discontinuity method, indirect tensile test, semi-circular bending test
National Category
Infrastructure Engineering
URN: urn:nbn:se:kth:diva-84030DOI: 10.1016/j.engfracmech.2007.02.003ISI: 000252231800031OAI: diva2:499098
International Conference in Crack Paths, Febuary/March 2008
TSC import 1721 2012-02-10 QC 20120217Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-02-17Bibliographically approved

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Birgisson, Björn
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