Strength optimization of novel binder containing plasterboard gypsum waste

H. Sadeghi-Pouya, Eshmaiel Ganjian, Peter A. Claisse, S. Karami

    Research output: Contribution to journalArticle

    Abstract

    The sulfate activation of basic oxygen slag waste (BOS) using plasterboard gypsum waste (PG) and cement by-pass dust (BPD) was investigated to produce a novel composite binder without using portland cement. The interactions between these three waste-derived materials were analyzed in terms of strength development of binary and ternary paste mixtures to establish the optimum mixture proportions corresponding to the highest compressive strength. The results show that crushed plasterboard gypsum waste can be used as a source of sulfate to form a novel sulfate activated pozzolan binder. It was observed that the optimum percentage of BOS and PG is affected not only by the type and characteristics of materials used, but also the order of optimization with which binary and ternary mixtures were made. It was found that BPD content has a great influence on compressive strength of binary and ternary combinations of BPD, PG, and BOS pastes.
    Original languageEnglish
    Pages (from-to)653-659
    JournalACI Materials Journal
    Volume104
    Issue number6
    Publication statusPublished - Nov 2009

    Fingerprint

    Calcium Sulfate
    Gypsum
    Binders
    Slags
    Sulfates
    Dust
    Oxygen
    Ointments
    Compressive strength
    Pozzolan
    Forms (concrete)
    Portland cement
    Cements
    Chemical activation
    Composite materials

    Bibliographical note

    The full-text of this article is not available from this repository. The publisher allows full-text availability of this article via the author's website - cllick on link below.

    Keywords

    • compressive strength
    • gypsum
    • pozzolan
    • slag

    Cite this

    Strength optimization of novel binder containing plasterboard gypsum waste. / Sadeghi-Pouya, H.; Ganjian, Eshmaiel; Claisse, Peter A.; Karami, S.

    In: ACI Materials Journal, Vol. 104, No. 6, 11.2009, p. 653-659.

    Research output: Contribution to journalArticle

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