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    Dispersive Clays, Related Piping, and Erosion in Geotechnical Projects

    Sherard JL, Decker RS
    Published: 1977

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    The symposium on Dispersive Clays, Related Piping, and Erosion in Geotechnical Projects was presented at the Seventy-ninth Annual Meeting of the American Society for Testing and Materials held in Chicago, Ill., 27 June - 2 July 1976. Committee D18 on Soil and Rock for Engineering Purposes sponsored the symposium. J. L. Sherard, consulting engineer, and R. S. Decker, Hoskins-Western-Sonderegger, Inc., presided as symposium co-chairmen and editors of this publication.

    Table of Contents


    Some Engineering Problems with Dispersive Clays

    Dispersive Clay at Sobradinho Dam

    Dispersive Clay in Irrigation Dams in Thailand

    Experience with Studies of Clay Erodibility in Greece

    Tunnel-Gully Erosion and Urban Development: A Case Study

    Chemical Treatment of a Sensitive, Cemented Clay (Champlain Clay)

    Erodibility Tests on a Sensitive, Cemented Marine Clay (Champlain Clay)

    Development and Use of the Soil Conservation Service Dispersion Test

    Amelioration of Tunnelling Susceptible Soils in the Hunter Valley, New South Wales, by Modification of Clay Double-Layer Interactions

    Field Methods for Determination of Soluble Salts and Percent Sodium from Extract for Identifying Dispersive Clay Soils

    Experiences in Identification and Treatment of Dispersive Clays in Mississippi Dams

    Laboratory Testing on High-Sodium Nondispersive Clays as Related to the Repair of a Clay Dam in Algeria

    Erosion, Corrective Maintenance, and Dispersive Clays

    Protecting a Dispersive Soil Storage by Water Treatment

    Factors Influencing Dispersive Clays and Methods of Identification

    Factors Affecting Spontaneous Dispersion of soil Materials as Evidenced by the Crumb Test

    Conditions Causing Piping in Compacted Clay

    Erosion of Unsaturated Clay in a Pinhole Test

    Identification of Dispersive Clays in the Texas Gulf Coast Area

    The Role of Dispersion in the Slaking of Intact Clay

    A Rheological Approach to Dispersive Clays

    Dispersion Characteristics of Clay from Mushroom Cave, Meramec Park Lake Project, Meramec River, Missouri

    Case Histories of Repairs and Designs for Dams Built with Dispersive Clay

    Relevance of Atterberg Limits in Evaluating Piping and Breaching Potential

    Dispersion in Some New Zealand Clays

    Identification of Susceptible Soils and Control of Tunnelling Failure in Small Earth Dams

    Encountering Dispersive Clays on Soil Conservation Service Projects in Oklahoma

    Concept of Critical Shear Stress in Relation to Characterization of Dispersive Clays

    Influence of Eroding Solution Composition on Dispersive Behavior of a Compacted Clay Shale

    Experiences with Tests of Dispersibility of Fine-Grained Soils for Dams in Colombia

    Turbidity and Zeta Potential Measurements of Clay Dispersibility

    Dispersive Soils at Sugarloaf Dam Site, Near Melbourne, Australia

    Summary—Evaluation of Symposium on Dispersive Clays


    Committee: D18

    DOI: 10.1520/STP623-EB

    ISBN-EB: 978-0-8031-4696-9

    ISBN-13: 978-0-8031-0192-0