Chip seals are effective pavement preservation treatments that are usually applied to address non-fatigue cracking, weathering, and raveling, to seal the surface, to delay oxidation, and, finally, to improve skid resistance. This study used field performance data of test sections from the Pavement Preservation Group Study being conducted by the National Center for Asphalt Technology and the Minnesota DOT’s Road Research Facility. Data from test sections located in a low-traffic-volume road with a hot, wet, no-freeze climate collected over a period of 7 years were used to evaluate the effect of several chip seal treatments. Treatments range from single layer to multilayer systems, and include different construction techniques such as rejuvenating scrub seal and fiber membrane. Also, a section was crack sealed before the application of a single layer chip seal to assess the benefits. A semi-parametric survival analysis was performed to determine the differences in median time to failure (MTTF) for different chip seal sections versus a controlled section—representing a “do-nothing” scenario. The results showed that the MTTF for a single layer chip seal ranges from 6.8 to 9.1 years depending on the pretreatment condition. Crack sealing before chip seal could extend the MTTF by an additional 1–3 years, depending on initial conditions. Double and triple layer chip seals extend the MTTF beyond 10 years. Finally, the scrub seal provided the highest benefits, with survival rates close to 100% after 10 years of performance.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Life-Extending Benefit of Chip Sealing for Pavement Preservation


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:


    Erscheinungsdatum :

    2021-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Life-Extending Benefit of Crack Sealing for Pavement Preservation

    Vargas-Nordcbeck, Adriana / Jalali, Farhang | Transportation Research Record | 2020


    Pavement Life–Extending Potential of Geosynthetic-Reinforced Chip Seal with High-Reflectivity Aggregates

    Mallick, Rajib B. / Li, Hui / Harvey, John et al. | Transportation Research Record | 2015


    Cost–Benefit Analysis of Continuous Pavement Preservation Design Strategies versus Reconstruction

    Smith, Kelly L. / Titus-Glover, Leslie / Darter, Michael I. et al. | Transportation Research Record | 2005


    Field Performance of Chip Seals for Pavement Preservation

    Vargas-Nordcbeck, Adriana | Transportation Research Record | 2018


    Cost-Benefit Analysis of Continuous Pavement Preservation Design Strategies Versus Reconstruction

    Smith, Kelly / Titus-Glover, Leslie / Darter, Michael et al. | Transportation Research Record | 2005