STP597

    Suitability of Shale as a Construction Material

    Published: Jan 1976


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    Abstract

    A study of many shale-like rocks from Pennsylvania was made to develop a material specification which would define shales suitable for use in appropriate types of construction. Specimens of shale were subjected to a wide variety of physical, chemical, and petrographic analyses.

    A simple classification of argillaceous rocks shows the nomenclature of shale-like rocks. A two-part test procedure was developed for rapid acceptance or rejection of shales in the field: screen by on-site observation of lamination thickness and weathering characteristics, and make final selections by using both an ethylene glycol soaking test and a modified Washington degradation test. Limiting values of the Washington degradation factor have been selected for specific uses of shale in construction.

    Keywords:

    aggregates, degradation, suitability, shales, lamination thickness, durability


    Author Information:

    Reidenouer, DR
    Chief petrographer, assistant petrographer, and concrete and aggregate testing engineer, Pennsylvania Department of Transportation, Harrisburg, Pa.

    Geiger, EG
    Chief petrographer, assistant petrographer, and concrete and aggregate testing engineer, Pennsylvania Department of Transportation, Harrisburg, Pa.

    Howe, RH
    Chief petrographer, assistant petrographer, and concrete and aggregate testing engineer, Pennsylvania Department of Transportation, Harrisburg, Pa.


    Paper ID: STP32345S

    Committee/Subcommittee: C09.93

    DOI: 10.1520/STP32345S


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