Detail projektu
Experimental analysis of the shrinkage, creep and cracking mechanism of the materials based on the alkali-activated slag
Období řešení: 01.01.2022 — 31.12.2024
Zdroje financování
Grantová agentura České republiky - Standardní projekty
- plně financující (2022-04-14 - 2024-12-31)
O projektu
The project aims at a deep and complex experimental determination of shrinkage and creep components, and monitoring of cracking mechanism of alkali-activated slag-based materials in relation to their microstructural evolution. For this purpose, activators with significantly different hydration kinetics, i.e. sodium waterglass, hydroxide, and carbonate, will be used. The shrinkage measurements will start as soon as possible to capture all volume changes during the solidification process. The microstructure undergoes very dynamic changes during the early stages implying that the duration of curing should be reflected within the determination and discussion of drying shrinkage, creep and cracking. In this context, the effect of the composition, curing regime, and aggregate content will be investigated in detail. The role of the specimens’ size and its effect on the drying shrinkage and cracking will also be examined. Additionally, a deep-learning algorithm will be developed for the crack recognition and advanced analysis.
Klíčová slova
alkali-activated slag; shrinkage; creep; cracking; curing
Označení
22-02098S
Originální jazyk
angličtina
Řešitelé
Kucharczyková Barbara, doc. Ing., Ph.D. - hlavní řešitel
Bílek Vlastimil, Ing., Ph.D. - spoluřešitel
Daněk Petr, doc. Ing., Ph.D. - spoluřešitel
Dvořák Richard, Ing., Ph.D. - spoluřešitel
Hajzler Jan, Ing. - spoluřešitel
Kocáb Dalibor, Ing., Ph.D. - spoluřešitel
Koplík Jan, Ing., Ph.D. - spoluřešitel
Lisztwan Dominik, Ing. - spoluřešitel
Nápravník Petr, Ing. - spoluřešitel
Rovnaník Pavel, doc. RNDr., Ph.D. - spoluřešitel
Šimonová Hana, doc. Ing., Ph.D. - spoluřešitel
Útvary
Ústav stavebního zkušebnictví
- příjemce (15.03.2021 - 31.12.2024)
Ústav fyziky
- interní (01.01.2022 - 31.12.2024)
Ústav chemie
- interní (01.01.2022 - 31.12.2024)
Ústav chemie materiálů
- interní (01.01.2022 - 31.12.2024)
Ústav stavební mechaniky
- interní (01.01.2022 - 31.12.2024)
Výsledky
HAJZLER, J.; BÍLEK, V.; KOTRLA, J.; KUCHARCZYKOVÁ, B. Influence of activator type and slag volume fraction on properties of alkali-activated slag pastes. In 25th International Conference Building Materials, Products and Technologies, ICBMPT 2022. Journal of Physics: Conference Series. 2022. ISSN: 1742-6588.
Detail
DVOŘÁK, R.; CHOBOLA, Z.; PLŠKOVÁ, I.; HELA, R.; BODNÁROVÁ, L. Classification of Thermally Degraded Concrete by Acoustic Resonance Method and Image Analysis via Machine Learning. Materials, 2023, vol. 16, no. 3, ISSN: 1996-1944.
Detail
KUCHARCZYKOVÁ, B.; ŠIMONOVÁ, H.; BÍLEK, V.; NÁPRAVNÍK, P. Pilot Study on Shrinkage and Fracture of Materials Based on the Alkali-Activated Slag: Influence of Curing Regime. In Journal of Physics: Conference Series, Volume 2423, 5th International Conference: Innovative Materials, Structures and Technologies (IMST 2022) 28/09/2022 - 30/09/2022 Riga, Latvia. Journal of Physics: Conference Series. Spojené království Velké Británie a Severního Irska: IOP Publishing, 2023. p. 1-9. ISSN: 1742-6588.
Detail
KUCHARCZYKOVÁ, B.; NÁPRAVNÍK, P.; KOCÁB, D.; LISZTWAN, D.; ROVNANÍK, P.; HAJZLER, J.; BÍLEK, V. Comprehensive study of moist curing duration and activator type on mechanical properties, shrinkage, and cracking of alkali-activated slag. Construction and building materials, 2024, vol. 416, no. 2024, p. 1-19. ISSN: 0950-0618.
Detail
HAJZLER, J.; BÍLEK, V.; KEJÍK, M.; KUCHARCZYKOVÁ, B. Effect of siliceous sand volume fraction on the properties of alkali-activated slag mortars. In International Conference Building Materials, Products and Technologies, ICBMPT 2023. Journal of Physics: Conference Series. IOP Science, 2023. p. 1-7. ISSN: 1742-6596.
Detail
NÁPRAVNÍK, P.; KOCÁB, D.; BÍLEK, V.; LISZTWAN, D.; KUCHARCZYKOVÁ, B. MONITORING THE INTERNAL STRUCTURE BEHAVIOUR OF ALKALI-ACTIVATED SLAG PASTE: EFFECT OF THE CURING MODE. Acta Polytechnica (on-line), 2023, vol. 63, no. 6, p. 411-418. ISSN: 1805-2363.
Detail
NÁPRAVNÍK, P.; LISZTWAN, D.; DANĚK, P.; KUCHARCZYKOVÁ, B. Experimental Determination of the Coefficient of Thermal Expansion of Hardened Alkali-Activated Slag Pastes. In 7th Non-Traditional Cement and Concrete. Advances in Science and Technology. Švýcarsko: Trans Tech Publications Ltd., 2024. p. 19-27. ISBN: 9783035737189. ISSN: 1662-0356.
Detail
KOCÁB, D.; BÍLEK, V.; NÁPRAVNÍK, P.; KUCHARCZYKOVÁ, B. Development of the internal structure of an alkali-activated paste related to the length of curing. In 26th International Conference on Building Materials, Products and Technologies, ICBMPT 2023. Journal of Physics: Conference Series. Bristol, Velká Británie: IOP Publishing, 2023. p. 1-9. ISSN: 1742-6596.
Detail