INFLUENCE OF THE ADDITION OF VARIOUS TYPES OF MINERAL ADMIXTURES ON THE ALKALI-SILICA REACTION IN CONCRETE
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43925788" target="_blank" >RIV/60461373:22310/22:43925788 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68407700:21110/22:00364135
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
INFLUENCE OF THE ADDITION OF VARIOUS TYPES OF MINERAL ADMIXTURES ON THE ALKALI-SILICA REACTION IN CONCRETE
Popis výsledku v původním jazyce
The work deals with the alkali-silica reaction (ASR) in concretes and mortars, which is one of the possible causesof failures of concrete structures. The aim of the work was to study the effect of different supplementarycementitious materials (SCMs) on ASR. The results were evaluated using an accelerated expansion test accordingto ASTM 1260. Firstly, it was necessary to solve the issue of the low-reactive aggregate. These aggregates did notallow a clear evaluation of the effect of SCMs on ASR. This problem was solved by replacing a part of theaggregate with glass shards, which led to an increase in the reactivity. In addition, the effects of different amountand different glass fractions on ASR were studied. A subsequent experiment with SCMs showed a positive effecton ASR elimination for all tested SCMs. The greatest effect on ASR elimination was detected for fly ash togetherwith metakaolin followed by the Sorfix binder. The least effective was a blast furnace slag.
Název v anglickém jazyce
INFLUENCE OF THE ADDITION OF VARIOUS TYPES OF MINERAL ADMIXTURES ON THE ALKALI-SILICA REACTION IN CONCRETE
Popis výsledku anglicky
The work deals with the alkali-silica reaction (ASR) in concretes and mortars, which is one of the possible causesof failures of concrete structures. The aim of the work was to study the effect of different supplementarycementitious materials (SCMs) on ASR. The results were evaluated using an accelerated expansion test accordingto ASTM 1260. Firstly, it was necessary to solve the issue of the low-reactive aggregate. These aggregates did notallow a clear evaluation of the effect of SCMs on ASR. This problem was solved by replacing a part of theaggregate with glass shards, which led to an increase in the reactivity. In addition, the effects of different amountand different glass fractions on ASR were studied. A subsequent experiment with SCMs showed a positive effecton ASR elimination for all tested SCMs. The greatest effect on ASR elimination was detected for fly ash togetherwith metakaolin followed by the Sorfix binder. The least effective was a blast furnace slag.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
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OECD FORD obor
20101 - Civil engineering
Návaznosti výsledku
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)
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Proceedings of the 9th International Conference on Chemical Technology
ISBN
978-80-88307-11-2
ISSN
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e-ISSN
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Počet stran výsledku
6
Strana od-do
101-106
Název nakladatele
Czech Society of Industrial Chemistry
Místo vydání
Prague
Místo konání akce
Mikulov
Datum konání akce
25. 4. 2022
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
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