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    Evaluation of Sulfate Resistance of Mortar Containing Palm Oil Fuel Ash from Different Sources

    Access Status
    Fulltext not available
    Authors
    Bamaga, S.
    Ismail, Mohamed
    Majid, Z.
    Ismail, M.
    Hussin, M.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Bamaga, S. and Ismail, M. and Majid, Z. and Ismail, M. and Hussin, M. 2013. Evaluation of Sulfate Resistance of Mortar Containing Palm Oil Fuel Ash from Different Sources. Arabian Journal for Science and Engineering. 38 (9): pp. 2293-2301.
    Source Title
    Arabian Journal for Science and Engineering
    DOI
    10.1007/s13369-012-0503-z
    ISSN
    1319-8025
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/62258
    Collection
    • Curtin Research Publications
    Abstract

    In this study, laboratory tests were conducted to evaluate the sulfate resistance of three types of mortar containing palm oil fuel ash (POFA) collected from different palm oil mills. The compressive strength of three different concretes containing different types of POFA was also investigated. For comparison purpose plain Portland cement mortar and concrete were used as a reference. Ground POFA was used to partially replace Portland cement type I, 20 % by weight of binder. For testing the durability of mortar exposed to sulfate attack, the expansion of standard mortar bars immersed in 5 % sodium sulfate Na 2 SO 4 and magnesium sulfate MgSO 4 solutions for up to 15 weeks was determined. Moreover, FESEM micrograph and EDS analysis were carried out. The results of 28 days compressive strength of two concretes containing POFA showed higher compressive strength than that of plain Portland cement concrete. The expansion levels of blended mortars were in general lower than plain Portland cement mortar. The FESEM and EDS analysis showed good correlation to the results of expansion tests. © 2012 King Fahd University of Petroleum and Minerals.

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