Testing of asphalt concrete samples was conducted by using the asphalt pavement analyzer test, the Superpave® shear tester (SST) frequency sweep test, and the SST repeat shear at constant height test to determine the rutting susceptibility that might be expected from samples that have different levels of segregation. Previous research had divided segregation into four levels: none, light, medium, and high. Test results suggest that samples with different segregation levels might show similar rutting susceptibility. Therefore, performance-related models were established in which segregation was divided into three levels: good, fair, and unacceptable. The performance-related models were applied to field data, and examination indicates that the modified models are capable of assessing segregation in field projects. Examination also found that fine segregation was present. Fine segregation can be predicted by extrapolating the developed model from the coarse part to the fine part. However, more data should be investigated to develop acceptable criteria for fine segregation. A methodology was developed to improve pavement quality by controlling aggregate segregation and poor compaction in placed mats. With the models and the proposed methodology, realistic construction uniformity could be assessed by agencies and contractors, which is the first step in obtaining pavements with high performance and longer service life.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Performance Testing of Segregated Hot-Mix Asphalt Samples to Evaluate Segregation Models


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:
    Wu, Junxia (Autor:in) / Romero, Pedro (Autor:in)


    Erscheinungsdatum :

    01.01.2005




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Performance Testing of Segregated Hot-Mix Asphalt Samples to Evaluate Segregation Models

    National Research Council (U.S.) | British Library Conference Proceedings | 2005


    Performance Testing of Segregated Hot-Mix Asphalt Samples to Evaluate Segregation Models

    Wu, Junxia / Romero, Pedro | Transportation Research Record | 2005



    On a Way to Evaluate Segregation of Asphalt Mixture

    Yong, P. / Lijun, S. / Yujin, S. | British Library Online Contents | 2005


    Aggregate Orientation and Segregation in Laboratory-Compacted Asphalt Samples

    Hunter, Alistair E. / Airey, Gordon D. / Collop, Andrew C. | Transportation Research Record | 2004