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    Identifying Soils by a Triangle Based on Unified Soil Classification System

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    This paper presents a general discussion of the Unified Soils Classification System (USCS) and outlines the development and use of a trilinear graph for identifying soils under this system. The material presented is based on the U. S. Army Corps of Engineers Technical Memorandum No. 3-357 published in 1953. However, the trilinear chart for graphical soils identification developed herein should be usable without modification by any public or private agency using the USCS.

    Author Information:

    McMinn, Jack
    Supervising Engineer, Brewer and Associates, San Francisco, Calif.

    Committee/Subcommittee: D18.07

    DOI: 10.1520/STP44333S