Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Beneficiation of Collie fly ash for synthesis of geopolymer Part 2: Geopolymers

    Access Status
    Fulltext not available
    Authors
    Van Riessen, Arie
    Chen-Tan, Nigel
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    van Riessen, Arie and Chen-Tan, Nigel. 2013. Beneficiation of Collie fly ash for synthesis of geopolymer Part 2: Geopolymers. Fuel. 111: pp. 829-835.
    Source Title
    Fuel
    DOI
    10.1016/j.fuel.2013.04.015
    ISSN
    0016-2361
    URI
    http://hdl.handle.net/20.500.11937/13968
    Collection
    • Curtin Research Publications
    Abstract

    This paper follows on from Beneficiation of Collie fly ash for synthesis of geopolymer: Part 1 – Beneficiation. In Part 1 beneficiation of fly ash was conducted in a three stage procedure using sieving, milling and magnetic separation to improve fly ash homogeneity and reactivity. At each stage of beneficiation the proportion of reactive amorphous material increases resulting in increased reactivity. This increase in reactivity necessitated changes in solids:liquids ratio to maintain a workable geopolymer mixture. The outcomes from this research clearly identifies that different levels of fly ash beneficiation lead to different geopolymer properties which in turn extends the range of applications for which geopolymers can be used. Compressive strength of all samples were 100 MPa or more with sieving producing a 32% increase in strength. The microstructure of geopolymers changed considerably with beneficiation leading to a very unusual interlocked structure for the sample made from non-magnetic, sieved and milled ash. Although one specific fly ash was used the results presented here are applicable to many other fly ashes.

    Related items

    Showing items related by title, author, creator and subject.

    • Geopolymer from a Western Australian fly ash
      Chen-Tan, Nigel W (2010)
      Ordinary Portland cement is utilised worldwide as a mainstay construction material. Worldwide consumption of cement in 2009 was estimated to be 2.8 billion tonnes, which unfortunately equates to the production of 2.8 ...
    • Beneficiation of Collie fly ash for synthesis of geopolymer: Part 1 – Beneficiation
      Van Riessen, Arie; Chen-Tan, Nigel (2013)
      Beneficiation of the fly ash was conducted in a three stage procedure using sieving, milling and magnetic separation to improve fly ash homogeneity and reactivity. Sieving was effective in reducing large carbon particles ...
    • Microstructural investigation of thermo-mechanically processed lithium slag for geopolymer precursor using various characterization techniques
      Javed, Usman; Shaikh, Faiz ; Sarker, Prabir Kumar (2022)
      Lithium slag is an emerging industrial waste due to the increasing demand for lithium rechargeable batteries attributed to the recent boom in the automobile industry and space exploration. It is extracted as a powder ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.