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Lightweight blended building waste in the production of innovative cement-based composites for sustainable construction

  1. 1.
    SYSNO ASEP0543588
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleLightweight blended building waste in the production of innovative cement-based composites for sustainable construction
    Author(s) Pokorný, J. (CZ)
    Ševčík, Radek (UTAM-F) RID, SAI, ORCID
    Šál, J. (CZ)
    Zárybnická, Lucie (UTAM-F) RID, SAI, ORCID
    Number of authors4
    Article number123933
    Source TitleConstruction and Building Materials. - : Elsevier - ISSN 0950-0618
    Roč. 299, September (2021)
    Number of pages11 s.
    Publication formPrint - P
    Languageeng - English
    CountryGB - United Kingdom
    Keywordsbuilding waste ; concrete production ; thermal performance ; sustainability
    OECD categoryMaterials engineering
    Method of publishingLimited access
    Institutional supportUTAM-F - RVO:68378297
    UT WOS000685997200008
    EID SCOPUS85108377493
    AnnotationIntensive quarrying of natural non-renewable resources belongs to the actual topics related to the dynamically developing construction industry worldwide. However, at the same moment, an appreciable quantity of construction and demolition waste (CDW) is generated, from which the primacy to concrete, ceramic and masonry derived materials is attributed. These are already traditionally applied in concrete manufacturing as supplementing and filing materials due to their good recycling ability. Nevertheless, a number of material blends which separation is complicated or highly financial demanding still remain and thus burden our environment. This work has been aimed at the effective application of lightweight blended building waste (LBW) in the manufacturing of eco-friendly concretes. Concrete mixtures with the volumetric content 0–100% of the waste blend have been prepared. The influence of LBW on 28 days’ water cured samples has been investigated with the application of a wide range of experimental procedures and various instrumental techniques. Performed tests revealed a substantial lightening effect of LBW – leading to hardened concretes with a unit weight of about 760 kg_m_3. On the other hand, a high rate of lightening caused considerable decrease in strength properties of produced composites. However, application of LBW up to 25% can be used to preserve usage of these blended concretes for construction applications. Other performed tests showed excellent thermal performance of waste aggregate enriched concretes, and thus these materials may find usage for special filling and flooring applications with minimum loading of bearing structures.
    WorkplaceInstitute of Theoretical and Applied Mechanics
    ContactKulawiecová Kateřina,, Tel.: 225 443 285
    Year of Publishing2022
    Electronic address
Number of the records: 1  

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