Effect of two sources of waste fly ash on compressive strength of cementitious mixtures

S. Karami, M. Zohrabi, Peter A. Claisse, Eshmaie Ganjian, Homayoon Sadeghi-Pouya

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    This research was undertaken to study the effect of sulphate activation of Run of Station Ash (ROSA) blend with Red-Gypsum (RG), Plaster Board Gypsum (PG) and By-Pass Dust (BPD). Tests were prepared using binary and ternary steps. All mixes had similar water to binder (w/b) ratio of 0.3% and the water content was reduced in last mixes to obtain more compressive strength. Results showed PG and RG can be used as sulphate to form a sulphate activated pozzolan BPD-ROSA binder which could be used for low strength construction materials. The source of by-product material, BPD and ROSA, affected the material characteristics and mixtures.
    Original languageEnglish
    Title of host publicationProceedings of the International Conference on Sustainable Construction Materials and Technologies
    EditorsJ. Zachar, P. Claisse, T.R. Naik, E. Ganjian
    PublisherCoventry University and the University of Wisconsin Milwaukee
    ISBN (Print)9781450714907
    Publication statusPublished - 2010


    • cement
    • sulphate activation
    • fly ash


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