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

Result code in 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>
Alternative codes found
RIV/68407700:21110/25:00390684
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
INFLUENCE OF THE ADDITION OF MUNICIPAL WASTE ASH ON THE CARBONATION IN CEMENT MORTARS
Original language description
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.
Czech name
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Czech description
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Project
<a href="/en/project/TK05020140" target="_blank" >TK05020140: Development of a waste-free technology using a modified Solid recovery fuels (SRF) to reduce the environmental burden in the production of heat and electricity in conventional sources.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
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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Number of pages
6
Pages from-to
120-125
Publisher name
Česká společnost průmyslové chemie (ČSPCH)
Place of publication
Praha
Event location
Mikulov
Event date
Apr 14, 2025
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
001678792400020

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