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Evaluation of test sections with Polymer Modified Bitumens
Nynas AB.
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
Swedish National Road and Transport Research Institute, Infrastructure, Measurement technology and engineering workshop.
Nynas NV.
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2014 (English)In: Asphalt Pavements: Proceedings of the International Conference on Asphalt Pavements, ISAP 2014, 2014, 287-296 p.Conference paper, (Refereed)
Resource type
Text
Abstract [en]

It has been recognized that Polymer Modified Bitumens (PMB) have more potential for use in asphalt paving and can clearly demonstrate the value of their initial higher cost. To further assess sustainable benefits on heavy trafficked roads, test sections using various PMBs were built on highway E6 in Sweden during 2003-2006. The main objective of this paper is to study the aging and rheological properties of the binders used. A large number of cores were drilled and characterized with respect to stiffness, fatigue and permanent deformation. The binders (original, lab aged and recovered) were investigated extensively with rheological and chemical methods. It was found that PMBs, particularly SBS modified, demonstrate better rheological properties as compared to unmodified bitumens, even after several years in the field. These include higher strain recovery and lower non-recoverable compliance at high temperatures, and lower stiffness at low temperatures. For the SBS modified binders, good aging resistance was observed. The high resistance to aging for the SBS modified binders was also evident in the stiffness measurement made on asphalt field cores. Although significant differences have not yet been seen between the test sections (all the sections are in good condition after six years of traffic), the observed improvements for the modified binders are expected to be confirmed by a longer follow-up of the test road.

Place, publisher, year, edition, pages
2014. 287-296 p.
Keyword [en]
Polymer, Modification, Bitumen, Experimental road, Ageing, Rheology, Stiffness, Deformation, Fatigue (mater)
National Category
Infrastructure Engineering
Research subject
30 Road: Highway design, 33 Road: Surfacing
Identifiers
URN: urn:nbn:se:vti:diva-9352Scopus ID: 2-s2.0-84904118916ISBN: 9781138027121 (print)OAI: oai:DiVA.org:vti-9352DiVA: diva2:1085817
Conference
12th International Conference on Asphalt Pavements, ISAP 2014, 1 June 2014 through 5 June 2014, Raleigh, NC
Available from: 2017-03-30 Created: 2017-03-30 Last updated: 2017-04-19Bibliographically approved

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Said, Safwat F.Carlsson, Håkan
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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