Superpave Gyratory Compactor as a compaction predictor tool for unbound material

Craig Kumpel, Adam Bagriacik, Robert Cohen, Stephen Rossi, Colin Yurick, Wing Ho Ma, Ali Daouadji, M. Beena Sukumaran

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This study presents data which supports that the Superpave Gyratory Compactor (SGC) can be used as a suitable means of compacting unbound material. The SGC was utilized to test unbound material used by the Federal Aviation Administration (FAA) for the base and subbase layer for airport pavements at the National Airport Pavement Test Facility (NAPTF). Three different materials were tested using the SGC, namely the P-154, P-209 and DGA. This paper focuses solely on P-154 and P-209. The P-154 and DGA have been used as subbase layers and P-209 for the base layer at the NAPTF for various construction cycles. The results from the SGC have been compared to field compaction and trafficking data obtained from the NAPTF. It is evident that the SGC can be used as a suitable predictor of field performance due to construction compaction and possibly trafficking. The SGC better simulates field compaction due to the contribution of both shear and vertical work. Energy measurements have also been used to determine the dependence of material type on the compactive effort required. The micro-mechanics behind compaction has been examined and has been found to be due to attrition and abrasion of the aggregate.

    Original languageEnglish (US)
    Title of host publicationAsphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014
    PublisherTaylor and Francis - Balkema
    Pages167-175
    Number of pages9
    ISBN (Print)9781138027121
    DOIs
    StatePublished - Jan 1 2014
    Event12th International Conference on Asphalt Pavements, ISAP 2014 - Raleigh, NC, United States
    Duration: Jun 1 2014Jun 5 2014

    Publication series

    NameAsphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014
    Volume1

    Other

    Other12th International Conference on Asphalt Pavements, ISAP 2014
    CountryUnited States
    CityRaleigh, NC
    Period6/1/146/5/14

    All Science Journal Classification (ASJC) codes

    • Building and Construction
    • Architecture

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