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    Valorisation of Wood Fly Ash on Concrete

    TitleValorisation of Wood Fly Ash on Concrete
    Publication TypePapers in International Journals
    Year of Publication2019
    AuthorsTeixeira E. R., Camões A., and Branco F. G.
    Abstract

    Wood fly ash (WFA) is a waste material produced in power plants as result of forest residues combustion to produce power and heat. In countries like Portugal, this waste is disposed of in landfills. Since this material shows pozzolanic characteristics, several studies have been done to evaluate its use as a construction material. This work shows an overview of some published results about the effect of the utilisation of WFA, as a supplementary cementitious material, on the durability and quality of concrete. The results showed that the increase on the wood fly ash content leads to a negative effect on the concrete properties when compared with a conventional concrete. However, the results showed that the behaviour of wood fly ash concrete is very similar to the coal fly ash concrete, which is the most pozzolanic material used in the world. In terms of durability, it was verified that WFA improved the most of the durability characteristics with the exception of carbonation resistance. However, more experimental analysis needs to be developed in terms of wood fly ash concrete durability. Results suggested that using wood fly ash to replace cement is a valuable sustainable option for concrete production. This manuscript discusses the key factors and attempts to provide new information about the application of the wood fly ash on concrete.

    JournalResources, Conservation and Recycling
    Volume145
    Pagination292-310
    Date Published2019-02-21
    PublisherElsevier
    ISSN18790658, 09213449
    DOI10.1016/j.resconrec.2019.02.028
    URLhttps://reader.elsevier.com/reader/sd/pii/S0921344919300916?token=86A791DDBE9716D97889EAF73C87D8DF70E80A69ADD5850EB2E482AC491FEA878EEA2981931552A58AD884DB03E4725F&originRegion=eu-west-1&originCreation=20210409151735
    Keywordscement replacement, Concrete, Fly ash, Sustainability, Wood fly ashCoal
    RightsembargoedAccess (3 Years)
    Peer reviewedyes
    Statuspublished
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    About CTAC

    The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.

    Currently CTAC aggregates 25 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more


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