Ballast specifications of 46 railroads, representing 74% of total line mileage in United States and Canada, have been reviewed by ballast subcommittee of American Railway Engineering Assn in order to determine degree of conformity with AREA recommended standards; summary of specifications for crushed stone ballast; summary of specifications for gravel ballast.


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    Titel :

    Requirements for principal railroads


    Weitere Titelangaben:

    Rock Products


    Beteiligte:
    Nordberg, B. (Autor:in)

    Erschienen in:

    Rock Products ; 47 , n 7


    Erscheinungsdatum :

    1944


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Technical requirements of modern railroads

    Klaren, J.W. | Engineering Index Backfile | 1949



    Railroads

    Fiske, R.A. | Engineering Index Backfile | 1937


    Railroads

    Engineering Index Backfile | 1892


    Railroads

    Robinson, S.W. | Engineering Index Backfile | 1882