Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Determination of fundamental tensile failure limits of mixtures
University of Florida, United States.ORCID iD: 0000-0003-0889-6078
Show others and affiliations
2007 (English)In: Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions, 2007, Vol. 71, 303-344 p.Conference paper, Published paper (Refereed)
Abstract [en]

Cracking is one of the most influential distresses that governs the service life of asphalt concrete pavements. Acquiring more insight into the fracture behavior of asphalt mixtures is essential to improve the cracking resistance of asphalt pavements. Recent work at University of Florida (1,2) has focused on the development of a new visco-elastic fracture mechanics-based crack growth law which identified the fracture energy density of mixtures as a fundamental crack growth threshold. The work that led to the development of the HMA fracture mechanics framework was based solely on Superpave IDT test results, therefore, it is of considerable interest to evaluate the existence of a fundamental fracture threshold for other laboratory test configurations. The work presented in this paper focuses on the identification and evaluation of fundamental tensile failure limits of hot mix asphalt mixtures (HMA) from multiple laboratory test configurations. Fracture energy densities and tensile strengths were evaluated for three different mixtures, including unmodified and heavily polymer modified mixtures, from the Superpave IDT, the Semi-Circular Bending Test (SCB) and the Three Point Bending Beam Test (3PB). Experimental analyses were complemented by a Digital Image Correlation System capable of providing dense and accurate full field strain estimations and thus suitable for describing the cracking behavior of the material at crack initiation. Tensile failure limits and the resulting fracture behavior in the three test configurations were predicted using a displacement discontinuity boundary element method with tessellations. Both experimental and numerical results indicate that fundamental HMA tensile failure properties can be determined from different test methods when appropriate analysis and interpretation methods are used. It was found that significant damage and first fracture occur locally in specimens associated with all test methods prior to peak loading, while analysis based on peak load and approximate analysis may lead to erroneous results.

Place, publisher, year, edition, pages
2007. Vol. 71, 303-344 p.
Series
Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions, ISSN 0270-2932 ; 76
Keyword [en]
Digital image correlation, HMA mixtures, Semi-circular bending test, Superpave indirect tension test, Three point bending beam test
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-83993Scopus ID: 2-s2.0-49649119028OAI: oai:DiVA.org:kth-83993DiVA: diva2:499061
Conference
Asphalt Paving Technology 2007 AAPT, San Antonio, TX, United States, 11 March 2007 through 14 March 2007
Note

TSC import 1656 2012-02-10. QC 20120313

Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2016-12-12Bibliographically approved

Open Access in DiVA

No full text

Scopus

Authority records BETA

Birgisson, Björn

Search in DiVA

By author/editor
Birgisson, Björn
Infrastructure Engineering

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 79 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf