Experimental research on new sustainable geopolymer concretes reinforced and not reinforced with natural fibers
Authors:
- Alberto Viskovic,
- Michał Łach,
- Łukasz Hojdys,
- Piotr Krajewski,
- Arkadiusz Kwiecien
Abstract
The paper describes experimental research voted to verify the mechanical characteristics of very sustainable geopolymer concretes and to try to improve their mechanical characteristic using natural fibers. Particularly, there were used and tested geopolymer concretes using a geopolymer matrix obtained from very cheap and sustainable fly ashes (as they come from the waste recycling). About the natural fibers, they were used hemp short fibers as they are very durable and sustainable. It was designed and performed a bending test program for six reference samples of geopolymer concrete beams without fibers. Then, it was designed and performed the bending test program for six samples of geopolymer concretes with the addition of hemp short fibers. All the samples are beams 15x15x60 cm, to perform four-point bending tests; then it was also designed to use the same beams, after their cracking in the bending tests, to obtain cubic samples (after a regularization of the faces) for compression tests. Thus, they were twelve reference cubic samples without fibers and twelve cubic samples with fibers, for the compression tests. The firsts results show geopolymer concretes with performances like those of a Portland concrete with fck between 25MPa and 30MPa, and tensile strength 1/10 of compression strength, but with a lower elastic modulus. The fibres used not cause significative modification in the mechanical characteristics, but they improve ductility.
- Record ID
- CUTb4a2b660bf44433a8007b178a79dea75
- Publication categories
- ; ;
- Author
- Pages
- 329-338
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 337-338; Bibliografia (liczba pozycji) - 12; Oznaczenie streszczenia - Abstr.
- Book
- Ilki Alper, Alper Ilki Çavunt Derya, Derya Çavunt Çavunt Yavuz Selim Yavuz Selim Çavunt (eds.): Building for the Future: Durable, Sustainable, Resilient : proceedings of the fib Symposium 2023. Vol. 1, Lecture Notes in Civil Engineering, no. 349, 2023, Cham, Springer, Springer Nature, ISBN 978-3-031-32519-9 (eBook)
- Keywords in English
- experimental laboratory tests, fly ashes, geopolymer concretes, hemp fibres, mechanical characteristics, sustainable concretes
- DOI
- DOI:10.1007/978-3-031-32519-9_31 Opening in a new tab
- URL
- https://link.springer.com/chapter/10.1007/978-3-031-32519-9_31 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 20
- Score source
- publisherList
- Score
- Publication indicators
- = 0
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb4a2b660bf44433a8007b178a79dea75/
- URN
urn:pkr-prod:CUTb4a2b660bf44433a8007b178a79dea75
* 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.