ASTM WK69424

    Revision of D6766 - 18 Standard Test Method for Evaluation of Hydraulic Properties of Geosynthetic Clay Liners Permeated with Potentially Incompatible Aqueous Solutions

    (What is a Work Item?)

    Active Standard: D6766 - 18

    Developed by Subcommittee: D35.04 | Committee D35 | Contact Staff Manager



    WK69424


    Keywords

    coefficient of permeability; geosynthetic clay liners (GCLs); hydraulic barriers; hydraulic conductivity; liners; permeameters;;

    Rationale

    Three changes: *Need to allow for test method without backpressure. *Need to change wording to use DI-distilled water for both 1) hydrating marked circle before cutting specimen, and 2) making paste for filling edges. *At end of specimen test; take specimen out, reassemble without specimen and test for clogging

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    08-05-2019

    Technical Contact:
    James Olsta

    Status:
    Draft Under Development