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Pavement performance follow-up and evaluation of polymer-modified test sections
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.ORCID iD: 0000-0002-6308-7487
Nynäs AB.
Swedish National Road and Transport Research Institute, Infrastructure, Measurement technology and engineering workshop.
2018 (English)In: The international journal of pavement engineering, ISSN 1029-8436, E-ISSN 1477-268X, p. 1-14Article in journal (Refereed) Published
Abstract [en]

Between 2003 and 2006, a test road consisting of several conventional and polymer-modified structures was built on a motorway. Different combinations of styrene–butadiene–styrene (SBS) and ethyl vinyl acetate (EVA) polymer-modified binders were used. The test structures have been in service since then and have been monitored for over 9 years. The resistance of the different types of asphalt concrete mixes to rutting and cracking was measured and predicted. The impact of ageing on the mixes was also evaluated. Although all the sections are in good condition after 9 years of traffic, the predicted differences between the test sections based on the PEDRO (Permanent Deformation of asphalt concrete layers for Roads) approach and laboratory evaluations are noticeable. Lateral wander and transverse profile measurements indicated that studded winter tyre wear contributed to most of the rutting compared to permanent deformation due to heavy traffic. The unmodified mixes exhibited considerable ageing and the SBS-modified mixes were least affected by ageing. Furthermore, the SBS-modified base mix produced significantly better fatigue resistance than the conventional base mix. However, further investigations of the relationships between bitumen and mix properties and further follow-ups of the test sections are recommended to validate the findings.

Place, publisher, year, edition, pages
Taylor and Francis Ltd. , 2018. p. 1-14
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:vti:diva-12865DOI: 10.1080/10298436.2018.1435878Scopus ID: 2-s2.0-85041917655OAI: oai:DiVA.org:vti-12865DiVA, id: diva2:1195322
Available from: 2018-04-05 Created: 2018-04-05 Last updated: 2018-04-05Bibliographically approved

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Ahmed, Abubeker WSaid, Safwat F.Carlsson, Håkan

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  • apa
  • harvard1
  • ieee
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