Several methods are available for determining the bulk specific gravity (Gsb) of reclaimed asphalt pavement (RAP). However, a clear recommendation has not been had for determining this property. In this study, asphalt mixes with known aggregate properties were produced and aged in the laboratory to simulate RAP. The aggregates were recovered, and the aggregate properties, including Gsb, were reassessed. The aged mixtures were also tested to determine maximum theoretical specific gravity (Gmm), from which estimated Gsb values could be calculated. The Gsb values from both the extraction and Gmm methods were compared with the known or true Gsb values for these aggregates. The effects of the RAP Gsb errors on voids in mineral aggregate values from the various methods were also evaluated. On the basis of the results of this study, it is recommended that the Gmm method be used to determine the RAP Gsb when a regional absorption value is known.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Bulk Specific Gravity of Reclaimed Asphalt Pavement Aggregate


    Untertitel :

    Evaluating the Effect on Voids in Mineral Aggregate


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:
    Kvasnak, Andrea (Autor:in) / West, Randy (Autor:in) / Michael, Jenna (Autor:in) / Loria, Luis (Autor:in) / Hajj, Elie Y. (Autor:in) / Tran, Nam (Autor:in)


    Erscheinungsdatum :

    01.01.2010




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Evaluation of Reclaimed Asphalt Pavement Aggregate in Road Bases and Subbases

    Taha, Ramzi / Ali, Galal / Basma, Adnan et al. | Transportation Research Record | 1999


    Cement Stabilization of Aggregate Base Material Blended with Reclaimed Asphalt Pavement

    Guthrie, W. Spencer / Brown, Ashley V. / Eggett, Dennis L. | Transportation Research Record | 2007


    Evaluation of the degradation of fine asphalt-aggregate mixtures containing high reclaimed asphalt pavement contents

    Sánchez, Diana B. / Grenfell, James / Airey, Gordon et al. | British Library Online Contents | 2017