Some measurements of the permeability of kaolin

A. Al-Tabbaa, D. M. Wood

    Research output: Contribution to journalArticlepeer-review

    150 Citations (Scopus)


    This Paper reports an experimental investigation of the vertical and horizontal permeabilities of speswhite kaolin clay. The permeabilities were measured using falling head permeability tests. A modification to a conventional oedometer was devised so that either vertical or horizontal permeabilities could he determined. It was found that the vertical and horizontal permeabilities of the clay slurry were similar, but that as the clay was consolidated one dimensionally the anisotropy of the clay fabric resulted in a greater horizontal permeability than the vertical permeability at any void ratio. Both permeabilities were uniquely related to the void ratio, for this one-dimensional history, independent of the overconsolidation ratio.
    Original languageEnglish
    Pages (from-to)499-503
    Number of pages5
    Issue number4
    Publication statusPublished - 1 Dec 1987


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