ASTM D6141 - 14

    Standard Guide for Screening Clay Portion and Index Flux of Geosynthetic Clay Liner (GCL) for Chemical Compatibility to Liquids

    Active Standard ASTM D6141 | Developed by Subcommittee: D35.04

    Book of Standards Volume: 04.13

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    Significance and Use

    4.1 This guide is intended as a starting place for those wishing to investigate the chemical compatibility of the clay portion of a geosynthetic clay liner to test liquids. Within the scope of this guide, the clay portion of a geosynthetic clay liner that is chemically compatible with a test liquid may be expected to maintain its swelling characteristics. Conversely, the clay portion of a geosynthetic clay liner that is incompatible with a test liquid may be expected not to maintain its swelling characteristics. In instances where the compatibility of the clay portion of a GCL is questionable, additional hydraulic testing under the expected site conditions may be warranted.

    1. Scope

    1.1 This guide covers procedures and test methods that can be used in the evaluation of the ability of the clay portion of a geosynthetic clay liner to resist change due to exposure to liquids. These liquids may come from a site, or be generated in a laboratory from a site-specific soil.

    1.2 The scope of this guide is limited to short-term screening and is not intended to replace evaluation procedures that measure a performance property such as EPA 9100, Test Method D6766, or other suitable ASTM standards as they become available. This guide does not address potential adverse effects of wet-dry cycling.

    1.3 This guide applies to the clay component of a GCL. The synthetic carrier components are covered independently as described in Practice D5322.

    1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D653 Terminology Relating to Soil, Rock, and Contained Fluids

    D4439 Terminology for Geosynthetics

    D5322 Practice for Laboratory Immersion Procedures for Evaluating the Chemical Resistance of Geosynthetics to Liquids

    D5890 Test Method for Swell Index of Clay Mineral Component of Geosynthetic Clay Liners

    D5891 Test Method for Fluid Loss of Clay Component of Geosynthetic Clay Liners

    D6072 Practice for Obtaining Samples of Geosynthetic Clay Liners

    D6766 Test Method for Evaluation of Hydraulic Properties of Geosynthetic Clay Liners Permeated with Potentially Incompatible Liquids

    Other Document

    EPATestMethod9100 Saturated Hydraulic Conductivity, Saturated Leachate Conductivity, and Intrinsic Permeability

    ICS Code

    ICS Number Code 65.020.40 (Landscaping and silviculture); 91.100.50 (Binders. Sealing materials)

    UNSPSC Code

    UNSPSC Code 30121900(Soil stabilizers and reinforcing materials)

    DOI: 10.1520/D6141-14

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    ASTM D6141

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