Quasi-static mechanical characterization of lightweight fly ash-based geopolymer foams
Authors:
- E. Linul,
- K. Korniejenko,
- D. A. Şerban,
- R. Negru,
- L. Marsavina,
- M. Łach,
- J. Mikuła
Abstract
This paper investigates the compressive and flexural behavior of a closed-cell fly ashbased geopolymer foam with a density of 240 kg/m 3. The influence of loading speed (0.1, 10, 100, 250 and 500 mm/min) and anisotropy (in-plane and outof-plane directions) on the compressive mechanical properties at room temperature were investigated. Under compressive loads, the stress-strain curves shows a cellular material typical behavior with three different regions: linear-elastic, plateau and densification region. On the other hand, the three-point bending tests were carried out on both un-notched and notched specimens (for fracture toughness determination). In compression, the foam progressively collapsed with a complete destruction of the successive rows of cells, while in the case of bending it exhibited a brittle behavior without plastic deformation, the fracture occurring by the propagation of a single crack.
- Record ID
- CUT00ee1da2c24d493cb7d1412b6e596f29
- Publication categories
- ; ;
- Author
- Journal series
- IOP Conference Series: Materials Science and Engineering, ISSN 1757-8981, e-ISSN 1757-899X, Irregular
- Issue year
- 2018
- Vol
- 416
- Pages
- [1-6]
- Article number
- 012102
- Other elements of collation
- il. (w tym kolor.); Bibliografia (na s.) - 5-6; Bibliografia (liczba pozycji) - 52; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 416
- Conference
- 7th International Conference on Advanced Materials and Structures - AMS 2018, 2018, 28-03-2018 - 31-03-2018, Timișoara, Rumunia
- Keywords in English
- geopolymer, fly ash, mechanical characterization
- DOI
- DOI:10.1088/1757-899X/416/1/012102 Opening in a new tab
- URL
- http://iopscience.iop.org/article/10.1088/1757-899X/416/1/012102 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 15
- Publication indicators
- = 6
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT00ee1da2c24d493cb7d1412b6e596f29/
- URN
urn:pkr-prod:CUT00ee1da2c24d493cb7d1412b6e596f29
* 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.