STP254

    Ohio Adopts the One-Point Mechanical Method for Determining the Liquid Limit of Soils

    Published: Jan 1960


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    Abstract

    The Ohio State Highway Testing Laboratory has been making soil tests for the past 25 years, starting with a modest 117 samples in 1934 to 32,202 samples in 1958. For the first 21 years the hand method for determining the liquid limit was used; an experienced operator could perform 60 to 70 liquid and plastic limit tests in an 8-hr day. The drawback to the hand method was that a new operator needed a training period of as much as a week and even then some never became proficient. Also experienced operators had to test known samples periodically in order to check their ability.


    Author Information:

    Joslin, J. G.
    Engineer, Ohio State Highway Testing Laboratory, Columbus, Ohio.

    Davis, H. D.
    Engineer, Ohio State Highway Testing Laboratory, Columbus, Ohio.


    Paper ID: STP44314S

    Committee/Subcommittee: D18.02

    DOI: 10.1520/STP44314S


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