Vše

Co hledáte?

Vše
Projekty
Výsledky výzkumu
Subjekty

Rychlé hledání

  • Projekty podpořené TA ČR
  • Významné projekty
  • Projekty s nejvyšší státní podporou
  • Aktuálně běžící projekty

Chytré vyhledávání

  • Takto najdu konkrétní +slovo
  • Takto z výsledků -slovo zcela vynechám
  • “Takto můžu najít celou frázi”

Long-term Behaviour of Ceramic Powder Containing Concrete for Pavement Blocks

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00340531" target="_blank" >RIV/68407700:21110/20:00340531 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/68407700:21720/20:00340531

  • Výsledek na webu

    <a href="https://doi.org/10.1080/10298436.2020.1725006" target="_blank" >https://doi.org/10.1080/10298436.2020.1725006</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1080/10298436.2020.1725006" target="_blank" >10.1080/10298436.2020.1725006</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Long-term Behaviour of Ceramic Powder Containing Concrete for Pavement Blocks

  • Popis výsledku v původním jazyce

    The present paper deals with the long-term experimental study focusing on the properties of concrete mixtures with the addition of ceramic powder, which originate during the hollow brick production. The used ceramic powder was applied as Portland cement replacement up to 30 wt.%. The properties of concrete were evaluated in terms of fresh mixture parameters, mechanical, permeability and durability properties based on the accelerated testing. The progress of the pozzolanic reaction was monitored using thermal analysis. Higher dosage of ceramic powder caused a significant loss of workability and an increase of permeability, which were declared on the results of carbonation test and freeze–thaw cycling. However, a mixture with 25 wt.% replacement exhibited values similar to the control mixture after 3 years. The production of vibro-pressed concrete pavement element was selected for industrial testing due to the reduced workability. However, only 15 wt.% replacement was applied for the operational tests, which were evaluated in terms of split strength after 5 days and freeze–thaw cycling after 28 days. Industrially produced specimens exhibited similar or higher values of studied parameters in comparison to the control mixture. Long-term mechanical tests and freeze–thaw cycling confirmed great practical potential of ceramic powder for these type of elements.

  • Název v anglickém jazyce

    Long-term Behaviour of Ceramic Powder Containing Concrete for Pavement Blocks

  • Popis výsledku anglicky

    The present paper deals with the long-term experimental study focusing on the properties of concrete mixtures with the addition of ceramic powder, which originate during the hollow brick production. The used ceramic powder was applied as Portland cement replacement up to 30 wt.%. The properties of concrete were evaluated in terms of fresh mixture parameters, mechanical, permeability and durability properties based on the accelerated testing. The progress of the pozzolanic reaction was monitored using thermal analysis. Higher dosage of ceramic powder caused a significant loss of workability and an increase of permeability, which were declared on the results of carbonation test and freeze–thaw cycling. However, a mixture with 25 wt.% replacement exhibited values similar to the control mixture after 3 years. The production of vibro-pressed concrete pavement element was selected for industrial testing due to the reduced workability. However, only 15 wt.% replacement was applied for the operational tests, which were evaluated in terms of split strength after 5 days and freeze–thaw cycling after 28 days. Industrially produced specimens exhibited similar or higher values of studied parameters in comparison to the control mixture. Long-term mechanical tests and freeze–thaw cycling confirmed great practical potential of ceramic powder for these type of elements.

Klasifikace

  • Druh

    O - Ostatní výsledky

  • CEP obor

  • OECD FORD obor

    20102 - Construction engineering, Municipal and structural engineering

Návaznosti výsledku

  • Projekt

    Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

  • 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