The design and selection of chip seal binders for adequate performance in service are currently based on specifications that include tests of emulsion residues or hot-applied asphalt cements at standard temperatures that do not cover the entire range of in-service temperatures, measure properties that are not performance related, and do not consider representative aging conditions for the critical first year. A surface performance-graded (SPG) specification for the evaluation and selection of chip seal binders that addressed these shortcomings was developed as part of previous Texas Department of Transportation (DOT) and NCHRP research projects. In the current study sponsored by the Texas DOT, the SPG specification was revised and further validated. This was accomplished through use of a single emulsion residue recovery method, determination of performance-related properties and exploration of additional criteria, and further validation of the SPG specification thresholds for these properties based on field performance monitoring and a comparison with laboratory results. This study was limited to producing a revised SPG specification for performance-related properties that addressed aggregate retention and bleeding in service. Specifically, the threshold for minimum shear strain at 0.8 G*i was reduced from 25% to 17.5%, and the m-value was removed. The effects of construction and quality control processes were beyond the scope of this study, and additional specifications are needed for use in conjunction with the SPG specification to address these issues and ensure adequate performance.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Revision and Further Validation of Surface Performance-Graded Specification for Chip Seal Binders


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:


    Erscheinungsdatum :

    01.01.2013




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Evolution of the Surface Performance-Graded Specification for Chip Seal Binders

    Epps Martin, Amy / Chang, Shi / Theeda, Swathi Mayi et al. | Transportation Research Record | 2017



    Proposed Refinement of Superpave High-Temperature Specification Parameter for Performance-Graded Binders

    Bouldin, Mark G. / Dongré, Raj / D′Angelo, John | Transportation Research Record | 2001


    Initial Validation of a New Surface Performance-Graded Binder Specification

    Walubita, Lubinda F. / Martin, Amy Epps / Hazlett, Darren et al. | Transportation Research Record | 2004