Adequate control of temperatures during compaction is a critical factor in the achievement of proper densification of asphalt concrete (AC) layers. As the mat cools down, the viscosity of the asphalt binder increases; this increased viscosity reduces the compaction capability of the asphalt mixture. To assist paving contractors in their estimation of the cooling rate of asphalt pavements, the MultiCool program uses a heat transfer model that predicts the time window for successful compaction. Although this program has been validated for a variety of hot- and warm-mix asphalt technologies, further validation is needed on additional sustainable asphalt mixture technology. Pavement sections built in 2012 at the National Center for Asphalt Technology Pavement Test Track were used to perform a validation study to assess the effect of sustainable technologies [e.g., reclaimed asphalt pavements, recycled asphalt shingles (RAS), ground tire rubber (GTR) modified binders, and foamed cold-mix (FCM) bases] on the cooling rate of AC and the time available for compaction. Results revealed that the MultiCool model was a fair predictor of the measured temperatures. However, the use of RAS, GTR-modified binders, and a FCM base had a direct effect on the temperature predictions. This effect warrants further investigation of the possible effects of RAS, GTR-modified binders, and FCM base on the thermal properties of asphalt mixtures.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Influence of Sustainable Recycled Asphalt Technologies on Pavement Construction Cooling Predictions


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:


    Erscheinungsdatum :

    01.01.2014




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Performance of Hot-Mix Asphalt Containing Recycled Asphalt Pavement

    Tran, Binh T. / Hassan, Rayya A. | Transportation Research Record | 2011



    Mechanical Properties of Bio-Asphalt on Recycled Asphalt Pavement Binder

    Sihombing, Atmy Verani Rouly / Subagio, Bambang Sugeng / Hariyadi, En Susanto et al. | TIBKAT | 2020


    Three-dimensional Characterization of Asphalt Mixture Containing Recycled Asphalt Pavement

    RICCARDI, CHIARA / FALCHETTO, AUGUSTO CANNONE / WANG, DI | TIBKAT | 2021