Can Czech stockpiled fly ash be used in the production of concrete?

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918484" target="_blank" >RIV/60461373:22310/19:43918484 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Can Czech stockpiled fly ash be used in the production of concrete?
Original language description
Czech coal power plants produce around 8 million tons of high-temperature fly ash every year. A part of this ash is being stored together with slag in stockpiles or lagoons, turning into agglomerates. These deposits could, in fact, provide a source of valuable raw material for the construction industry. We compared the properties of agglomerates from stockpile Panský Les (Czech Republic), which was formed from the hightemperature fly ash from Mělník power plant (Czech Republic), with fresh fly ash from the same power plant. The comparison was done according to the European Standard EN 450-1 "Fly ash for concrete". Samples of agglomerates extracted from various depths of the stockpile complied with the requirements on chemical properties specified in the standard. To comply with physical requirements, the agglomerates must be dried, and coarse agglomerates removed. After such treatment, the agglomerates can be used in the production of concrete.
Czech name
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Czech description
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Project
<a href="/en/project/FV30062" target="_blank" >FV30062: Possibilities of utilization of coal-ash from power stations stored at stock piles</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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