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    Valorisation of waste expanded polystyrene in concrete using a novel recycling technique

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    Authors
    Herki, B.A.
    Khatib, Jamal M.
    Issue Date
    2016-04-15
    
    Metadata
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    Abstract
    This study examines the engineering properties of lightweight aggregate concretes (LWACs) incorporating a novel Expanded Polystyrene (EPS)-based lightweight aggregated called Stabilised Polystyrene (SPS). The SPS aggregate was produced by 80% waste EPS, 10% clay and 10% cement. The influence of the increasing incorporation of SPS on the workability, density, compressive strength, flexural strength, ultrasonic pulse velocity, drying shrinkage, expansion and water absorption (WA) of the different concretes has been investigated. The results showed that the use of SPS enabled to reduce the density of concrete by 8–52% compared to that of the control concrete. The reduction in density was due to the increase in total porosity in the lightweight concretes (LWCs), which also induced higher WA, drying shrinkage and expansion. The 28-day compressive strength of the LWAC was in the range of 4.6–16.4 MPa; thus, the concrete mixture with the higher performances almost satisfied the mechanical and density criteria of structural LWC. These results show that the utilisation of SPS for the manufacture of LWACs is possible.
    Citation
    Herki, BA., Khatib, JM. (2016) 'Valorisation of waste expanded polystyrene in concrete using a novel recycling technique', European Journal of Environmental and Civil Engineering,
    Publisher
    Taylor & Francis
    Journal
    European Journal of Environmental and Civil Engineering
    URI
    http://hdl.handle.net/2436/618643
    DOI
    10.1080/19648189.2016.1170729
    Additional Links
    http://www.tandfonline.com/doi/full/10.1080/19648189.2016.1170729
    Type
    Journal article
    Language
    en
    ISSN
    1964-8189
    2116-7214
    ae974a485f413a2113503eed53cd6c53
    10.1080/19648189.2016.1170729
    Scopus Count
    Collections
    Faculty of Science and Engineering

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