The engineering of a cementitious barrier

Peter A. Claisse, H.P. Unsworth

    Research output: Contribution to journalArticle

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    Abstract

    When cementitious materials are used for the containment of waste they act in two different and sometimes conflicting ways. The first is physical containment in which the waste is physically isolated from the environment. The second is chemical containment in which the water passing through the barrier is buffered to high pH thereby very substantially reducing the solubility of many harmful species and promoting sorption onto the cement matrix. Chemical barriers have been extensively researched for nuclear waste containment and this paper explores the possibility of using them for non-nuclear waste. Initial results are presented which show that cementitious barriers containing cement replacement materials may be well suited to barrier construction. It is, however, concluded that cementitious barriers would have to be used as part of a composite system in order to comply with current legislation.
    Original languageEnglish
    Pages (from-to)267-272
    JournalEngineering Geology Special Publication
    Volume11
    DOIs
    Publication statusPublished - 1996

    Fingerprint

    containment
    engineering
    Cements
    cement
    Radioactive wastes
    Sorption
    Large scale systems
    Solubility
    radioactive waste
    legislation
    solubility
    sorption
    replacement
    matrix
    Water
    water
    material
    chemical

    Bibliographical note

    Engineering Geology Special Publications, vol 11, 1996, http://dx.doi.org/10.1144/GSL.ENG.1996.011.01.36 © Geological Society of London 1996.

    Keywords

    • landfill
    • waste containment
    • cementitious materials
    • concrete
    • chemical containment

    Cite this

    The engineering of a cementitious barrier. / Claisse, Peter A.; Unsworth, H.P.

    In: Engineering Geology Special Publication, Vol. 11, 1996, p. 267-272.

    Research output: Contribution to journalArticle

    Claisse, Peter A. ; Unsworth, H.P. / The engineering of a cementitious barrier. In: Engineering Geology Special Publication. 1996 ; Vol. 11. pp. 267-272.
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