POZOLAN ACTIVITY OF CALCINED CLAYS AND OTHER POZZOLANS USING THE FRATTINI TEST

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922863" target="_blank" >RIV/60461373:22310/21:43922863 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.icct.cz/cs/Amca-ICCT/media/content/2021/proceedings/ICCT2021-Proceedings.pdf" target="_blank" >https://www.icct.cz/cs/Amca-ICCT/media/content/2021/proceedings/ICCT2021-Proceedings.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

POZOLAN ACTIVITY OF CALCINED CLAYS AND OTHER POZZOLANS USING THE FRATTINI TEST

Popis výsledku v původním jazyce

The presented work deals with the determination of pozzolanic activity according to the Frattini test (ČSN EN 196-5) of selected high-temperature fly ash (FA), biomass ash (BMA), calcined clays (CC) fired at a temperature of 600 - 1000°C and SiO2. The results showed that the reactivity of individual substances differs significantly. All FA showed pozzolanic activity, while biomass ash showed significantly worse pozzolanic properties, which, however, is directly related to the high proportion of calcium ions in these ashes. Stachema silica fume with a very high specific surface had excellent pozzolanic properties, while the waste silica did not show pozzolanic properties. By monitoring the effect of calcination temperature on the subsequent reactivity of the selected clay, it was found that the temperature has no significant effect on the reactivity of the clay according to the performed Frattini test. The reduction of reactivity was achieved only at a temperature of 1000 ° C, when mullite was formed in the sample.

Název v anglickém jazyce

POZOLAN ACTIVITY OF CALCINED CLAYS AND OTHER POZZOLANS USING THE FRATTINI TEST

Popis výsledku anglicky

The presented work deals with the determination of pozzolanic activity according to the Frattini test (ČSN EN 196-5) of selected high-temperature fly ash (FA), biomass ash (BMA), calcined clays (CC) fired at a temperature of 600 - 1000°C and SiO2. The results showed that the reactivity of individual substances differs significantly. All FA showed pozzolanic activity, while biomass ash showed significantly worse pozzolanic properties, which, however, is directly related to the high proportion of calcium ions in these ashes. Stachema silica fume with a very high specific surface had excellent pozzolanic properties, while the waste silica did not show pozzolanic properties. By monitoring the effect of calcination temperature on the subsequent reactivity of the selected clay, it was found that the temperature has no significant effect on the reactivity of the clay according to the performed Frattini test. The reduction of reactivity was achieved only at a temperature of 1000 ° C, when mullite was formed in the sample.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/FW01010195" target="_blank" >FW01010195: Pokročilé výrobní technologie pro strategické využití a skladování vedlejších energetických produktů (VEP)</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 8th International Conference on Chemical Technology

ISBN

978-80-88307-08-2

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

243-248

Název nakladatele

Czech Society of Industrial Chemistry

Místo vydání

Prague

Místo konání akce

Praha

Datum konání akce

3. 5. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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