Red ceramic wastes: A calcined clay pozzolan

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00231294" target="_blank" >RIV/68407700:21110/15:00231294 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-94-017-9939-3_22" target="_blank" >http://dx.doi.org/10.1007/978-94-017-9939-3_22</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-94-017-9939-3_22" target="_blank" >10.1007/978-94-017-9939-3_22</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Red ceramic wastes: A calcined clay pozzolan

Popis výsledku v původním jazyce

The properties and hydration of blended cements containing from 8 to 40% by mass of ceramic waste (CW) from different countries (Argentine and Czech Republic) are investigated. The mini slump, the heat released rate up to 48 h, the pozzolanic activity and the compressive strength at 2, 7 and 28 are determined. Hydration process is characterized by XRD analysis and the pore size refinement is accessed by MIP. Results show that both CWs increase the water demand with increasing the cement replacement level, and they possess pozzolanic activity after 7 days. At early age, the heat released and the compressive strength are lower than that of the Portland cement (PC) for all replacement levels. At 28 days, the pozzolanic reaction significantly improves the compressive strength. From XRD analysis, it is evident that CW reacts to form AFm phases (hemicarboaluminate at 7-28 and later transformed to monocarboaluminate) depending on the replacement level and CW used. CH peak reduction due to the pozzolanic reaction appears at 28 days. The reduction of porosity up to 16-24% of CW replacement is in accordance with the compressive strength results.

Název v anglickém jazyce

Red ceramic wastes: A calcined clay pozzolan

Popis výsledku anglicky

The properties and hydration of blended cements containing from 8 to 40% by mass of ceramic waste (CW) from different countries (Argentine and Czech Republic) are investigated. The mini slump, the heat released rate up to 48 h, the pozzolanic activity and the compressive strength at 2, 7 and 28 are determined. Hydration process is characterized by XRD analysis and the pore size refinement is accessed by MIP. Results show that both CWs increase the water demand with increasing the cement replacement level, and they possess pozzolanic activity after 7 days. At early age, the heat released and the compressive strength are lower than that of the Portland cement (PC) for all replacement levels. At 28 days, the pozzolanic reaction significantly improves the compressive strength. From XRD analysis, it is evident that CW reacts to form AFm phases (hemicarboaluminate at 7-28 and later transformed to monocarboaluminate) depending on the replacement level and CW used. CH peak reduction due to the pozzolanic reaction appears at 28 days. The reduction of porosity up to 16-24% of CW replacement is in accordance with the compressive strength results.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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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)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Calcined Clays for Sustainable Concrete (RILEM Bookseries Volume 10, 2015)

ISBN

978-94-017-9938-6

ISSN

2211-0844

e-ISSN

—

Počet stran výsledku

9

Strana od-do

179-187

Název nakladatele

Springer Netherlands

Místo vydání

Dordrecht

Místo konání akce

Lausanne

Datum konání akce

23. 6. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000380463000022