The possibility of using calcium formate and potassium formate or propionate to increase the workability of RPC
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F22%3APU146551" target="_blank" >RIV/00216305:26310/22:PU146551 - isvavai.cz</a>
Result on the web
<a href="https://www.uiam.sk/~oravec/svk/e_zbornik_svk_2022.pdf" target="_blank" >https://www.uiam.sk/~oravec/svk/e_zbornik_svk_2022.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The possibility of using calcium formate and potassium formate or propionate to increase the workability of RPC
Original language description
In order to achieve a low water/binder ratio of RPC (reactive powder concrete), superplasticizers (SP) are added, which make it possible to reduce the content of mixing water while maintaining suitable workability. However, by using SP workability cannot be increased indefinitely, as the use of a higher amount of SP than its corresponding optimal dose leads to reduced workability. Therefore, the ideal solution would be to find other substances that - together with SP - would lead to a further increase in the workability of RPC. The subject of this work is the study of the influence of potassium formate (PF), potassium propionate (PP) and their combination with calcium formate (CF) on the flow of RPC. This paper also deals with their effect on RPC hydration and focuses of whether these additives do negatively affect the mechanical properties of RPC. Two sets of RPC samples were prepared to measure flow, compressive strength, and flexural strength. In the 1st set, 3.97 wt. % of PF (by weight of the cem
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů