STP126

    Aids in the Interpretation of the Consolidation Test

    Published: Jan 1952


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    Abstract

    A method has been previously described for the preparation of remolded specimens which have a high degree of uniformity, are almost completely saturated, and appear to have some of the characteristics formerly associated only with undisturbed samples of naturally deposited clays. The specimens were prepared by extruding batches of moist clay through a small laboratory-type ceramic de-airing extrusion machine High degrees of saturation were thus obtained without sacrificing the relatively stiff consistencies common to many undisturbed samples of natural clays. Even with extremely careful laboratory measurements, it was impossible to detect any significant differences in moisture content, void ratio, or degree of saturation between specimens taken from consecutive slugs. However, there were some differences detected among slugs selected at random from the extruded material. These differences were caused by condensation which occurred prior to extrusion of the slugs; the moist clay had been stored for a period of about one month in unsealed cans in a moist vault. It was concluded that de-aired and extruded samples could become very accurate and valuable tools for many types of laboratory research, particularly in the investigation of test procedures and in the evaluation of test equipment.


    Author Information:

    Matlock, Hudson
    Assistant Professor and Professor of Civil Engineering, The University of Texas, Austin, Tex.

    Dawson, Raymond F.
    Assistant Professor and Professor of Civil Engineering, The University of Texas, Austin, Tex.


    Paper ID: STP48295S

    Committee/Subcommittee: D18.02

    DOI: 10.1520/STP48295S


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