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    Strength and permeation properties of slag blended fly ash based geopolymer concrete

    191788_191788.pdf (214.9Kb)
    Access Status
    Open access
    Authors
    Deb, Partha
    Nath, Pradip
    Sarker, Prabir
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Deb, Partha Sarathi and Nath, Pradip and Sarker, Prabir Kumar. 2013. Strength and permeation properties of slag blended fly ash based geopolymer concrete. Advanced Materials Research 651: pp. 168-173.
    Source Title
    Advanced Materials Research
    DOI
    10.4028/www.scientific.net/AMR.651.168
    ISSN
    1022-6680
    Remarks

    Copyright © 2013 Trans Tech Publications

    URI
    http://hdl.handle.net/20.500.11937/14823
    Collection
    • Curtin Research Publications
    Abstract

    Geopolymer is a binder that can act as an alternative of Portland cement. Geopolymers use by-product substances such as fly ash, and can help reduce carbon dioxide emission of concrete production. This paper presents the results of a study on the fly ash based geopolymer concrete suitable for curing at ambient temperature. To activate the fly ash, a combination of sodium hydroxide and sodium silicate solutions was used. The setting and hardening of geopolymer concrete were obtained by blending blast furnace slag with fly ash instead of using heat curing. Ground granulated blast furnace slag (GGBFS) was used at the rate of 10% or 20 % of the total binder. The tests conducted include compressive strength, tensile strength, flexure strength, sorptivity and volume of permeable voids (VPV) test. The geopolymer concrete compressive strength at 28 days varied from 27 to 47 MPa. Results indicated that the strength increased and water absorption decreased with the increase of the slag content in the geopolymer concrete. In general, blending of slag with fly ash in geopolymer concrete improved strength and permeation properties when cured in ambient temperature.

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