INFLUENCE OF THE ADDITION OF MUNICIPAL WASTE ASH ON THE CARBONATION IN CEMENT MORTARS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932527" target="_blank" >RIV/60461373:22310/25:43932527 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/25:00390684

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

INFLUENCE OF THE ADDITION OF MUNICIPAL WASTE ASH ON THE CARBONATION IN CEMENT MORTARS

Popis výsledku v původním jazyce

The effect of fly ash and bottom ash from the co-combustion of selected municipal waste with coal and limestone(MFBC ash) on the carbonation of mortar specimens were investigated. The reference samples were specimenscontaining standardized fly ash from a power plant and specimens containing Portland cement (PC) withoutadmixtures. Mortars with binder, standardized sand and water to binder ratio of 0.35 were prepared. Carbonationof the mortar specimens took place in an incubator under conditions of 3% CO₂, a temperature of 30°C, andhumidity of 60-65%. The depth of carbonation was measured directly using the phenolphthalein test (PT), andindirectly through compressive strength measurements. The samples were tested after 7, 14, and 28 days. Theresults showed that mortars with MFBC ash exhibited faster carbonation than the reference mortar with PC. Thecarbonation rate of mortars with MFBC ash did not exceed the carbonation rate of cement with standardized flyash. In the mortars with ashes, carbonation was slowest in the sample of fly MFBC ash. The results from thecompressive strength measurements did not conclusively demonstrate the effect of carbonation on the strengthof the specimens.

Název v anglickém jazyce

INFLUENCE OF THE ADDITION OF MUNICIPAL WASTE ASH ON THE CARBONATION IN CEMENT MORTARS

Popis výsledku anglicky

The effect of fly ash and bottom ash from the co-combustion of selected municipal waste with coal and limestone(MFBC ash) on the carbonation of mortar specimens were investigated. The reference samples were specimenscontaining standardized fly ash from a power plant and specimens containing Portland cement (PC) withoutadmixtures. Mortars with binder, standardized sand and water to binder ratio of 0.35 were prepared. Carbonationof the mortar specimens took place in an incubator under conditions of 3% CO₂, a temperature of 30°C, andhumidity of 60-65%. The depth of carbonation was measured directly using the phenolphthalein test (PT), andindirectly through compressive strength measurements. The samples were tested after 7, 14, and 28 days. Theresults showed that mortars with MFBC ash exhibited faster carbonation than the reference mortar with PC. Thecarbonation rate of mortars with MFBC ash did not exceed the carbonation rate of cement with standardized flyash. In the mortars with ashes, carbonation was slowest in the sample of fly MFBC ash. The results from thecompressive strength measurements did not conclusively demonstrate the effect of carbonation on the strengthof the specimens.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/TK05020140" target="_blank" >TK05020140: Vývoj bezodpadové technologie využívající modifikovaný TAP pro snížení zátěže životního prostředí při výrobě tepla a elektrické energie v klasických zdrojích</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 12th International Conference on Chemical Technology

ISBN

978-80-88307-27-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

120-125

Název nakladatele

Česká společnost průmyslové chemie (ČSPCH)

Místo vydání

Praha

Místo konání akce

Mikulov

Datum konání akce

14. 4. 2025

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

001678792400020