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    A review on different treatment methods for enhancing the properties of recycled aggregates for sustainable construction materials

    Access Status
    Fulltext not available
    Authors
    Mistri, Abhijit
    Bhattacharyya, S.K.
    Dhami, Navdeep
    Mukherjee, Abhijit
    Barai, S.V.
    Date
    2020
    Type
    Journal Article
    
    Metadata
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    Citation
    Mistri, A. and Bhattacharyya, S.K. and Dhami, N. and Mukherjee, A. and Barai, S.V. 2020. A review on different treatment methods for enhancing the properties of recycled aggregates for sustainable construction materials. Construction and Building Materials. 233: Article No. 117894.
    Source Title
    Construction and Building Materials
    DOI
    10.1016/j.conbuildmat.2019.117894
    ISSN
    0950-0618
    Faculty
    Faculty of Science and Engineering
    Curtin International
    School
    School of Civil and Mechanical Engineering
    CI Regional Deans
    URI
    http://hdl.handle.net/20.500.11937/83266
    Collection
    • Curtin Research Publications
    Abstract

    With global increase in construction and demolition, recycling of construction debris as an aggregate can be a vital step towards achieving sustainability in concrete construction. However, a clear methodology for reuse of construction and demolition (C&D) waste in concrete is warranted for its use in practice. This paper reviews the challenges revealed hitherto such as weak interfacial transition zone, high water absorption and presence of micro cracks in the use of C&D wastes as the recycled aggregate (RA). Methods of mitigation of these weaknesses through various treatments have been reported. This review has a special focus on India, a country that generates one of the world's highest quantity of C&D waste. After analysing all the treatment methods, the authors summarize that the strengthening of attached mortar (AM) technique is better than removing of AM, which is also cost-effective, eco-friendly and sustainable. Use of nano-materials and pozzolana along with different mixing methods and application of bio-cement is found to be superior and environmental friendly approach for improving the properties of recycled aggregates.

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