Behavior of geopolymers under changing curing conditions and cyclic temperature changes
Authors:
- Michał Łach,
- Paweł Fryda,
- Kinga Pławecka,
- Kinga Korniejenko
Abstract
Known for decades, geopolymer materials have been gaining importance in recent years due to the environmental benefits of their use as an alternative to Portland cement-based concretes. However, comprehensive studies of their curing conditions and manufacturing parameters, as well as resistance to the effects of different environments, are needed. This paper presents the results of strength properties of geopolymers cured under different conditions (temperature: 20, 40, 60, 75°C, humidity: about 0% and 95%) and for two variants of w/c ratio. The effect of surfactants on the compressive strength of geopolymers was also investigated. The paper presents the results of testing the curing conditions of fly ash-based geopolymers and the results of their resistance to variable cycles of temperature changes in the range from -30°C to +100 °C. As a result of the study, it was found that the most optimal curing conditions for geopolymers is the use of chambers with controlled humidity. The best compressive strength results were obtained for samples cured at 75°C and 95% humidity. Testing for resistance to temperature cycling showed only a slight decrease in strength properties after 25 cycles, but increasing this number of cycles did not translate into a further decrease in strength.
- Record ID
- CUT8f276341b1b44a4b997282c8368cda26
- Publication categories
- ; ;
- Author
- Pages
- 143-152
- Other elements of collation
- il. (w tym kolor.); Bibliografia (na s.) - 150-152; Bibliografia (liczba pozycji) - 35; Oznaczenie streszczenia - Abstr.
- Book
- Silva Gomes J.F., J.F. Silva Gomes Meguid S.A. S.A. Meguid (eds.): Proceedings M2D2022 : 9th International Conference on Mechanics and Materials in Design, Funchal/Portugal, 26-30 June 2022, 2022, Porto, Portugal, INEGI-FEUP, ISBN 978-989-54756-3-6
- Keywords in English
- geopolymer, curing conditions, temperature resistance, fly ash, compressive strength
- URL
- https://paginas.fe.up.pt/~m2d/proceedings_m2d2022/index.htm Opening in a new tab
- Related project
- Development of technology for additive production of environmentally friendly and safe insulation materials and able to accumulate heat based on the alkaline activation of anthropogenic raw materials. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Language
- eng (en) English
- License
- Score (nominal)
- 5
- Score source
- publisherList
- Score
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT8f276341b1b44a4b997282c8368cda26/
- URN
urn:pkr-prod:CUT8f276341b1b44a4b997282c8368cda26
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.