ASTM D5890 - 18

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

    Active Standard ASTM D5890 | Developed by Subcommittee: D35.04

    Book of Standards Volume: 04.13


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    Significance and Use

    4.1 Clay mineral is a major functional component of GCL systems that reduces the hydraulic conductivity of industrial, waste, or ground water through the liner.

    4.2 Clay mineral quality can vary significantly and affect the hydraulic conductivity of the GCL composite. This test method evaluates a significant property of clay mineral that relates to performance.

    1. Scope

    1.1 This test method covers an index method that enables the evaluation of swelling properties of a clay mineral in reagent water for estimation of its usefulness in geosynthetic clay liners (GCLs). This test method is not applicable for clays with polymers.

    1.2 It is adapted from United States Pharmacopeia (USP-NF-XVII) test method for bentonite.

    1.3 Powdered clay mineral is tested after drying to constant weight at 105 ± 5 °C; granular clay mineral should be ground to 100 % passing a 150-µm (No. 100) U.S. Standard Sieve with a minimum of 65 % passing a 75-µm (No. 200) U.S. Standard Sieve. The bentonite passing the 150-µm U.S. Standard Sieve is used for testing after drying to constant weight at 105 ± 5 °C.

    1.4 The values stated in SI units are to be regarded as 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.

    1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    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

    D1193 Specification for Reagent Water

    D4643 Test Method for Determination of Water Content of Soil and Rock by Microwave Oven Heating

    D4753 Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction Materials Testing

    E1 Specification for ASTM Liquid-in-Glass Thermometers

    E145 Specification for Gravity-Convection and Forced-Ventilation Ovens

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    E725 Test Method for Sampling Granular Carriers and Granular Pesticides


    ICS Code

    ICS Number Code 17.120.01 (Measurement of fluid flow in general); 59.080.70 (Geotextiles)

    UNSPSC Code

    UNSPSC Code 11111804(Bentonite)


    Referencing This Standard
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    DOI: 10.1520/D5890-18

    Citation Format

    ASTM D5890-18, Standard Test Method for Swell Index of Clay Mineral Component of Geosynthetic Clay Liners, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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