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    Properties of fly ash geopolymer concrete in seawater environment

    237900_237900.pdf (350.4Kb)
    Access Status
    Open access
    Authors
    Olivia, M.
    Nikraz, Hamid
    Date
    2013
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Olivia, M. and Nikraz, H. 2013. Properties of fly ash geopolymer concrete in seawater environment, in Proceedings of the Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-2013), Sep 11-13 2013. Sapporo, Japan: Hokkaido University.
    Source Title
    Proceedings of the 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013
    Additional URLs
    http://hdl.handle.net/2115/54335
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/37113
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents properties of fly ash geopolymer concrete subjected to continuous immersion in 3.5% NaCl solution and accelerated wetting drying at 80OC and 24-hour cycle in NaCl solution. Three geopolymer mixtures and a control mix with target strength of higher than 55 MPa were evaluated. Change in compressive strength, effective porosity, and weight were observed. There was no significant decrease in strength for both geopolymer and OPC after exposed to the continuous immersion and cyclic wetting drying. Continuous immersion for 365 days changed the effective porosity of the geopolymer concrete. The effect of a change in porosity could be seen from a marginal weight change of the geopolymer concrete. The geopolymer concrete was found to perform better under cyclic exposure than the OPC concrete judging from the compressive strength, porosity and weight change were considered.

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