Water intrusion into low strength and/or swelling subgrade soils under railroad track results in the need for almost continuous maintenance as well as operational problems for railroad traffic. In recent years many techniques for stabilizing unstable track structures have been developed. One of these techniques is the use of hot-mix asphaltic concrete as a structural layer in the track structure. The use of a hot-mix asphalt structural layer in the track structure combined with the provision for adequate drainage of water away from the track has been shown to reduce or eliminate water intrusion into the subgrade. This helps to reduce maintenance requirements and improve operating conditions. This report documents the design and construction of an asphalt underlayment in the railroad track at Red River Army Depot (RRAD), Texarkana, Texas. Also included is a brief review of the use of hot-mix asphaltic concrete in railroad track, a benefit-cost analysis, and a discussion of the factors that should be considered contemplating when considering track rehabilitation using the underlayment technique.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Structural Enhancement of Railroad Track Structures Using Asphalt Underlayment


    Beteiligte:
    D. M. Coleman (Autor:in)

    Erscheinungsdatum :

    1986


    Format / Umfang :

    110 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Hot-mix asphalt underlayment in track

    Chrismer, Steven M. | IuD Bahn | 1997



    Towards trackbed design with asphalt underlayment using FWD-based numerical model

    Wehbi, Mohamed / Gallou, Maria / Lee, Benjamin | Taylor & Francis Verlag | 2020


    Long-Term Performance of Asphalt Underlayment Trackbeds for Special Trackbed Applications

    Rose, J. G. / Anderson, J. S. / American Railway Engineering & Maintenance of Way Association | British Library Conference Proceedings | 2006


    JRC2009-63006 Design Methodology for Hot Mix Asphalt Underlayment With Crossing Diamonds

    Chrismer, S.M. / Davis, D.D. / Smith, L. et al. | British Library Conference Proceedings | 2009