Počet záznamů: 1  

Durability assessment of self-healing in ordinary Portland cement concrete containing chemical additives

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    SYSNO ASEP0545398
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevDurability assessment of self-healing in ordinary Portland cement concrete containing chemical additives
    Tvůrce(i) Aspiotis, K. (GR)
    Sotiriadis, Konstantinos (UTAM-F) RID, ORCID, SAI
    Ntaska, A. (GR)
    Mácová, Petra (UTAM-F) RID, SAI, ORCID
    Badogiannis, E. (GR)
    Tsivilis, S. (GR)
    Celkový počet autorů6
    Číslo článku124754
    Zdroj.dok.Construction and Building Materials. - : Elsevier - ISSN 0950-0618
    Roč. 305, October (2021)
    Poč.str.14 s.
    Forma vydáníTištěná - P
    Jazyk dok.eng - angličtina
    Země vyd.NL - Nizozemsko
    Klíč. slovaself-healing ; concrete ; chemical additives ; water retarders ; dicarboxylic acids ; durability
    Obor OECDMaterials engineering
    Způsob publikováníOmezený přístup
    Institucionální podporaUTAM-F - RVO:68378297
    UT WOS000696989300004
    EID SCOPUS85114621791
    DOI10.1016/j.conbuildmat.2021.124754
    AnotaceThe self-healing effect of several combinations of different additives (dicarboxylic acids, sodium carbonate, expansive additive, silica fume, fibers) incorporated in artificially cracked concrete specimens, was investigated. Their effectiveness was assessed through stereomicroscopic observations and durability tests. The structure and chemistry of the healing products were characterized with optical microscopy and Raman spectroscopy. The additives ensured closing crack widths up to 400 μm. The combination dicarboxylic acids/expansive additive performs best by preserving unreacted clinker grains that may hydrate at later stages. Carbonation of portlandite led to calcite precipitation either in bulk (using fibers as nucleation sites) or on the cracks’ surface.
    PracovištěÚstav teoretické a aplikované mechaniky
    KontaktKulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285
    Rok sběru2022
    Elektronická adresahttps://doi.org/10.1016/j.conbuildmat.2021.124754
Počet záznamů: 1