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    Performance evaluation of the soft soil reinforced ground palm oil fuel ash layer composite

    Access Status
    Fulltext not available
    Authors
    Mujah, D.
    Rahman, Muhammad
    Zain, N.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Mujah, D. and Rahman, M. and Zain, N. 2015. Performance evaluation of the soft soil reinforced ground palm oil fuel ash layer composite. Journal of Cleaner Production. 95: pp. 89-100.
    Source Title
    Journal of Cleaner Production
    DOI
    10.1016/j.jclepro.2015.02.058
    ISSN
    0959-6526
    School
    Curtin Sarawak
    URI
    http://hdl.handle.net/20.500.11937/34213
    Collection
    • Curtin Research Publications
    Abstract

    © 2015 Elsevier Ltd. All rights reserved. This study seeks to validate the possible reuse of the ground palm oil fuel ash (POFA) in soft soil improvement. POFA used in the present study was derived from the abundantly available palm oil waste residues from the nearby palm oil mill. Once the POFA is dried, it is further grounded to two different particle sizes i.e. 30 µm (large particle) and 12 µm sieve (small particle) in order to determine the effect of the POFA fineness in soft soil improvement. Furthermore, a one dimensional deformation analysis was carried out using the oedometer apparatus to investigate the effect of water saturation in soft soil samples incorporating both the original unground POFA. The result showed that the improvement factor portrayed by the smaller particle size of the ground POFA was much more pronounced as compared to the larger particle size. Similar trend was found in the consolidation results especially when the soft soil sample was fully saturated. Also, the shear strength parameters of the reinforced soft soil with ground POFA increased significantly at about 50%-60% for both the internal friction angle and the cohesion values.

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