Earth materials--i.e., soil and rock--form the substructure of all railroad track. In this report, the functions and performance characteristics of each of the substructure elements (i.e., ballast, subballast, and subgrade), and the material properties that influence the substructure performance are described. In addition, guidelines are provided for their use in railroad track.


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    Title :

    Ballast and Subgrade Requirements Study: Railroad Track Substructure - Materials Evaluation and Stabilization Practices


    Contributors:
    R. M. Simon (author) / L. Edgers (author) / J. V. Errico (author)

    Publication date :

    1983


    Size :

    388 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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