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Determination and Prediction of Crack Patterns in Asphalt Mixture under Static Loading
University of Florida.ORCID iD: 0000-0003-0889-6078
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2006 (English)In: International Conference on CRACK PATHS (CP 2006), 2006Conference paper (Refereed)
Abstract [en]

This paper presents a comparison between predicted and measured crack patterns developing in asphalt mixtures during static loading. Two different state configuration were investigated performing the Indirect Tensile Test (IDT) and the Semi-Circular Bending Test (SCB). A Digital Image Correlation System was applied to obtain a dense and accurate displacement/strain field of asphalt mixtures and for describing the cracking behavior. The resulting fracture behavior in the tests was predicted using a displacement discontinuity boundary element method to explicitly model the microstructure of asphalt mixtures. The predicted crack initiation and crack propagation patterns are consistent with observed cracking behavior. The results also imply that fracture in mixtures can be modeled effectively using a micromechanical approach that allows for crack growth both along aggregate surfaces, as well as through aggregates. 

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Infrastructure Engineering
URN: urn:nbn:se:kth:diva-84022OAI: diva2:499090
In Crack Paths ’06, September 14-16, 2006, Parma, Italy
TSC import 1713 2012-02-10. QC 20120313Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-03-13Bibliographically approved

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Birgisson, Björn
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