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Characterization of unbound granular materials within a mechanistic design framework for low volume roads
Technische Universitat Dresden.
Technische Universitat Dresden.
Technische Universitat Dresden.
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology. University of Iceland.ORCID iD: 0000-0002-4256-3034
2017 (English)In: Transportation Geotechnics, ISSN 2214-3912, Vol. 13, p. 2-12Article in journal (Refereed) Published
Abstract [en]

Unbound granular materials (UGM), used in base and subbase layers, play a major role in the structural performance of low volume roads (LVR) with a thin asphalt surface layer. A prerequisite for a proper design of such roads is the development of reliable testing techniques to simulate the behavior of UGMs under conditions similar to those that occur when subjected to traffic. Therefore, there is a need for simple and economical test methods to characterize the mechanical behavior of UGM under the action of high traffic loads. This paper presents a methodology for the experimental characterization of UGMs with a focus on mechanistic design. The results of a test campaign aimed at characterizing the elastic and plastic behavior of UGM are shown. The laboratory tests were performed using a new volumetric compaction tests and the triaxial test. Based on the results of the tests, a new classification method for UGMs intended to be used in the base course of thin asphalt pavements is suggested. 

Place, publisher, year, edition, pages
Elsevier Ltd , 2017. Vol. 13, p. 2-12
Keywords [en]
Unbound base, Subbase, Granular, Low traffic road, Modulus of elasticity, Test method, Compaction, Triaxial
National Category
Infrastructure Engineering
Research subject
30 Road: Highway design, 32 Road: Pavement design
Identifiers
URN: urn:nbn:se:vti:diva-12463DOI: 10.1016/j.trgeo.2017.08.010ISI: 000414348000002Scopus ID: 2-s2.0-85029610368OAI: oai:DiVA.org:vti-12463DiVA, id: diva2:1158015
Available from: 2017-11-17 Created: 2017-11-17 Last updated: 2017-12-06Bibliographically approved

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Erlingsson, Sigurdur

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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