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Electrical properties and self-heating ability of alkali-activated slag with graphite powder

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00345752" target="_blank" >RIV/68407700:21110/20:00345752 - isvavai.cz</a>

  • Výsledek na webu

    <a href="https://doi.org/10.5593/sgem2020/6.1/s26.047" target="_blank" >https://doi.org/10.5593/sgem2020/6.1/s26.047</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.5593/sgem2020/6.1/s26.047" target="_blank" >10.5593/sgem2020/6.1/s26.047</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Electrical properties and self-heating ability of alkali-activated slag with graphite powder

  • Popis výsledku v původním jazyce

    Alkali-activated aluminosilicates and geopolymers in the dry-state are typical dielectrics which is a limiting factor for their utilization in new sophisticated ways in construction industry. Nevertheless, such an issue can be solved by using various electrically conductive admixtures to attain reasonable electrical properties that ensure new functional properties, such as self-heating or self-sensing. Self-heating ability is attained by the addition of electrically conductive aggregates or sufficient amount of metallic or carbon-based powders or fibers ensuring a significant increase in electrical conductivity. However, the self-heating was studied mainly for cementitious materials. Taking into consideration good materials properties of alkali-activated aluminosilicates and geopolymers, such as good mechanical properties, chemical resistance, and durability together with the lack of research concerning electrically enhanced multifunctional materials, it is obvious the necessity of new studies. In this paper, alkali-activated ground-granulated blast-furnace slag composite with graphite admixture was studied in terms of basic physical and electrical properties together with the experimental verification of self-heating ability. It was proved that the designed composite with 35 wt. % of graphite powder can be classified as multifunctional material that could be utilized in special applications, such as snow-melting pavements, snow-melting roads or self-heating construction elements.

  • Název v anglickém jazyce

    Electrical properties and self-heating ability of alkali-activated slag with graphite powder

  • Popis výsledku anglicky

    Alkali-activated aluminosilicates and geopolymers in the dry-state are typical dielectrics which is a limiting factor for their utilization in new sophisticated ways in construction industry. Nevertheless, such an issue can be solved by using various electrically conductive admixtures to attain reasonable electrical properties that ensure new functional properties, such as self-heating or self-sensing. Self-heating ability is attained by the addition of electrically conductive aggregates or sufficient amount of metallic or carbon-based powders or fibers ensuring a significant increase in electrical conductivity. However, the self-heating was studied mainly for cementitious materials. Taking into consideration good materials properties of alkali-activated aluminosilicates and geopolymers, such as good mechanical properties, chemical resistance, and durability together with the lack of research concerning electrically enhanced multifunctional materials, it is obvious the necessity of new studies. In this paper, alkali-activated ground-granulated blast-furnace slag composite with graphite admixture was studied in terms of basic physical and electrical properties together with the experimental verification of self-heating ability. It was proved that the designed composite with 35 wt. % of graphite powder can be classified as multifunctional material that could be utilized in special applications, such as snow-melting pavements, snow-melting roads or self-heating construction elements.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    20501 - Materials engineering

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/GA19-11516S" target="_blank" >GA19-11516S: Geopolymery pro sofistikované aplikace ve stavebnictví</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Ostatní

  • Rok uplatnění

    2020

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    20th International Multidisciplinary Scientific GeoConference SGEM 2020

  • ISBN

    978-619-7603-12-5

  • ISSN

    1314-2704

  • e-ISSN

  • Počet stran výsledku

    8

  • Strana od-do

    359-366

  • Název nakladatele

    International Multidisciplinary Scientific GeoConference SGEM

  • Místo vydání

    Sofia

  • Místo konání akce

    Albena

  • Datum konání akce

    16. 8. 2020

  • Typ akce podle státní příslušnosti

    WRD - Celosvětová akce

  • Kód UT WoS článku