STP599: Effect of Storage and Reconsolidation on the Properties of Champlain Clays

    La Rochelle, P
    Professor, graduate student, and associate professors, Université Laval, Quebec,

    Sarrailh, J
    Professor, graduate student, and associate professors, Université Laval, Quebec,

    Roy, M
    Professor, graduate student, and associate professors, Université Laval, Quebec,

    Tavenas, FA
    Professor, graduate student, and associate professors, Université Laval, Quebec,

    Pages: 21    Published: Jan 1976


    Abstract

    A testing program has been made on samples of sensitive cemented clays at different times after sampling. When comparing results of unconfined compression tests performed on the field immediately after sampling or in the laboratory the following week, it is observed that there is a decrease in the measured strength which may be attributed to water migration; however, this effect was minimized or eliminated completely by keeping the samples in the tubes or by trimming the samples immediately after sampling. The reconsolidation of the samples to the in situ stresses restored an appreciable part of the strength lost by sampling disturbance; this effect is negligible in the case of good quality samples. Tests made on block samples which had been stored for many years in a humid room have shown a decrease in the shearing of the clay, but the preconsolidation pressure has not been affected.

    Keywords:

    soils, cohesive soils, tests, samples, preservation, storage


    Paper ID: STP39079S

    Committee/Subcommittee: D18.05

    DOI: 10.1520/STP39079S


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