Gypsum waste reduction through stabilization for trench backfill

M.W. Rahman, G.S. Ghataora, D.N. Chapman, M. Tyrer, Peter A. Claisse, Eshmaiel Ganjian

    Research output: Chapter in Book/Report/Conference proceedingChapter

    1 Citation (Scopus)

    Abstract

    Conventional backfill for utility trenches often comprises of granular crashed rock, which is Type I subbase material as used in road pavement construction. However, the increasing need to preserve resources and to use recovered and recycled materials led to the consideration of using gypsum as a utility trench backfill material. Thus a range of mixtures containing waste gypsum were investigated. During this study it was found that mixes containing waste gypsum, limestone quarry dust and ordinary Portland cement complied with the existing Specifications for trench backfill in terms of unconfined compressive strength as well as durability in respect of loss of strength on soaking and freeze thaw. Leachate tests showed that sulphate levels were also within acceptable limits.
    Original languageEnglish
    Title of host publicationGeoCongress 2008
    PublisherASCE
    Pages320-327
    ISBN (Print)978-0-7844-0970-1
    DOIs
    Publication statusPublished - 2008

    Fingerprint

    backfill
    gypsum
    trench
    stabilization
    pavement
    durability
    compressive strength
    quarry
    leachate
    cement
    limestone
    sulfate
    road
    dust
    resource
    rock
    waste reduction
    material
    waste gypsum

    Bibliographical note

    The full text of this item is not available from the repository. Paper presented at GeoCongress 2008, held March 9-12, 2008, New Orleans, Louisiana, United States.

    Keywords

    • gypsum
    • waste management
    • backfills

    Cite this

    Rahman, M. W., Ghataora, G. S., Chapman, D. N., Tyrer, M., Claisse, P. A., & Ganjian, E. (2008). Gypsum waste reduction through stabilization for trench backfill. In GeoCongress 2008 (pp. 320-327). ASCE. https://doi.org/10.1061/40970(309)40

    Gypsum waste reduction through stabilization for trench backfill. / Rahman, M.W.; Ghataora, G.S.; Chapman, D.N.; Tyrer, M.; Claisse, Peter A.; Ganjian, Eshmaiel.

    GeoCongress 2008. ASCE, 2008. p. 320-327.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Rahman, MW, Ghataora, GS, Chapman, DN, Tyrer, M, Claisse, PA & Ganjian, E 2008, Gypsum waste reduction through stabilization for trench backfill. in GeoCongress 2008. ASCE, pp. 320-327. https://doi.org/10.1061/40970(309)40
    Rahman MW, Ghataora GS, Chapman DN, Tyrer M, Claisse PA, Ganjian E. Gypsum waste reduction through stabilization for trench backfill. In GeoCongress 2008. ASCE. 2008. p. 320-327 https://doi.org/10.1061/40970(309)40
    Rahman, M.W. ; Ghataora, G.S. ; Chapman, D.N. ; Tyrer, M. ; Claisse, Peter A. ; Ganjian, Eshmaiel. / Gypsum waste reduction through stabilization for trench backfill. GeoCongress 2008. ASCE, 2008. pp. 320-327
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