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  • A step towards durable, ductile and sustainable concrete: Simultaneous incorporation of recycled aggregates, glass fiber and fly ash

    Author(s)
    Ali, Babar
    Qureshi, Liaqat Ali
    Shah, Syed Haroon Ali
    Rehman, Safi Ur
    Hussain, Iqrar
    Iqbal, Maria
    Griffith University Author(s)
    Hussain, Iqrar
    Year published
    2020
    Metadata
    Show full item record
    Abstract
    High carbon footprint and low tensile strength are two of the major drawbacks of plain cement concrete (PC). Simultaneous incorporation of recycled materials and fiber-reinforcements in concrete may help to overcome these issues. In this research paper, a novel method is proposed to enhance the mechanical and durability performance of RAC by combined incorporation of glass fiber (GF) and fly ash (FA). In this study, various properties of concrete mixes are evaluated such as compressive strength, splitting tensile strength, flexural strength, water absorption, chloride penetration, and acid attack resistance. It is found that ...
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    High carbon footprint and low tensile strength are two of the major drawbacks of plain cement concrete (PC). Simultaneous incorporation of recycled materials and fiber-reinforcements in concrete may help to overcome these issues. In this research paper, a novel method is proposed to enhance the mechanical and durability performance of RAC by combined incorporation of glass fiber (GF) and fly ash (FA). In this study, various properties of concrete mixes are evaluated such as compressive strength, splitting tensile strength, flexural strength, water absorption, chloride penetration, and acid attack resistance. It is found that the individual incorporation of GF improves the overall mechanical performance and acid attack resistance of RAC. The use of GF upgrades the mechanical performance of RAC, but it also increases the water absorption and chloride penetration. FA not only improves the later age mechanical properties, but also helps in minimizing the loss in durability due to incorporation of both GF and RCA. FA improves the bond between GF and binder matrix, therefore, GF-reinforced mixes (GFRC) incorporating FA exhibit more net gain in mechanical strength than GFRC mixes without FA. Composite addition of GF and FA can help in manufacturing more durable, ductile and sustainable RAC.
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    Journal Title
    Construction and Building Materials
    Volume
    251
    DOI
    https://doi.org/10.1016/j.conbuildmat.2020.118980
    Subject
    Building
    Civil engineering
    Science & Technology
    Technology
    Construction & Building Technology
    Engineering, Civil
    Materials Science, Multidisciplinary
    Publication URI
    http://hdl.handle.net/10072/414341
    Collection
    • Journal articles

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