POZZOLANIC ACTIVITY OF FLY ASH AND BOTTOM ASH BY FRATTINI TEST AND ELECTRICAL CONDUCTIVITY TEST

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43930060" target="_blank" >RIV/60461373:22310/23:43930060 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22810/23:43930060 RIV/68407700:21110/23:00375878

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

POZZOLANIC ACTIVITY OF FLY ASH AND BOTTOM ASH BY FRATTINI TEST AND ELECTRICAL CONDUCTIVITY TEST

Popis výsledku v původním jazyce

Pozzolanic activity is an important property of supplementary cementitious materials (SCMs), which plays a fundamental role in determining their suitability for the usage in cements and concretes. This activity is most often determined by the reaction between the aluminosilicate component of pozzolan and Ca(OH)2 under normal conditions. In this work, the pozzolanic activity of fly ash (FA) and bottom ash (BA) from a lignite power plant in the Czech Republic was studied from the perspective of the Frattini test and the electrical conductivity (EC) test. At the same time, the effect of milling on pozzolanic activity was studied. It was found that all FA and BA samples showed pozzolanic activity by Frattini test. The least consumed Ca2+ ions, and therefore the lowest pozzolanic activity, were attested in unmodified FA and BA samples, which at the same time also had the smallest specific surface area value. A continuous EC test for a period of 24 hours confirmed a similar course of the eclectic conductivity decline curves in the observed time for both types of SCMs. © 2023 40th Annual International Pittsburgh Coal Conference, PCC 2023. All rights reserved.

Název v anglickém jazyce

POZZOLANIC ACTIVITY OF FLY ASH AND BOTTOM ASH BY FRATTINI TEST AND ELECTRICAL CONDUCTIVITY TEST

Popis výsledku anglicky

Pozzolanic activity is an important property of supplementary cementitious materials (SCMs), which plays a fundamental role in determining their suitability for the usage in cements and concretes. This activity is most often determined by the reaction between the aluminosilicate component of pozzolan and Ca(OH)2 under normal conditions. In this work, the pozzolanic activity of fly ash (FA) and bottom ash (BA) from a lignite power plant in the Czech Republic was studied from the perspective of the Frattini test and the electrical conductivity (EC) test. At the same time, the effect of milling on pozzolanic activity was studied. It was found that all FA and BA samples showed pozzolanic activity by Frattini test. The least consumed Ca2+ ions, and therefore the lowest pozzolanic activity, were attested in unmodified FA and BA samples, which at the same time also had the smallest specific surface area value. A continuous EC test for a period of 24 hours confirmed a similar course of the eclectic conductivity decline curves in the observed time for both types of SCMs. © 2023 40th Annual International Pittsburgh Coal Conference, PCC 2023. All rights reserved.

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

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

40th Annual International Pittsburgh Coal Conference, PCC 2023

ISBN

978-1-890977-38-2

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

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Název nakladatele

International Pittsburgh Coal Conference

Místo vydání

Istanbul

Místo konání akce

Istanbul

Datum konání akce

4. 10. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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