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    Development of Geopolymer Systems for High Temperature Applications

    238144_Vickers 2015.pdf (20.06Mb)
    Access Status
    Open access
    Authors
    Vickers, Les
    Date
    2015
    Supervisor
    Dr Will Rickard
    Prof. Arie van Riessen
    Type
    Thesis
    Award
    PhD
    
    Metadata
    Show full item record
    School
    Department of Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/1453
    Collection
    • Curtin Theses
    Abstract

    Geopolymers are amorphous, inorganic structures based on silicate and aluminate tetrahedrons and could be beneficial in thermal and fire resistant applications. The outcomes from this work suggest that fly ash geopolymer composites suitable for thermal applications can be produced. When compared to OPC based systems geopolymers showed extended thermal resistance (from 500 °C to 800 °C). Improved thermal properties were achieved with increases in compressive strength after firing to 1000 °C and the near elimination of expansive events at high temperature.

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    • Strategies to control the high temperature shrinkage of fly ash based geopolymers
      Vickers, Les; Rickard, William D.A.; van Riessen, Arie (2014)
      Strategies to control thermally induced shrinkage in fly ash based geopolymers are investigated. The useof low (<2) Si:Al ratios in the geopolymer provides superior thermal properties and the addition of fillers delivered ...
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      Geopolymers are an inorganic polymer synthesised from the dissolution and polycondensation of aluminosilicates in alkaline solutions under hydrothermal condition, yielding an amorphous, three-dimensional polymeric framework ...
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