The influence of short coir, glass and carbon fibers on the properties of composites with geopolymer matrix
Authors:
- Kinga Korniejenko,
- Michał Łach,
- Janusz Mikuła
Abstract
The aim of the article is to analyze the influence of short coir, glass and carbon fiber admixture on the mechanical properties of fly ash-based geopolymer, such as: flexural and compressive strength. Glass fiber and carbon fibers have been chosen due to their high mechanical properties. Natural fibers have been chosen because of their mechanical properties as well as for the sake of comparison between their properties and the properties of the artificial ones. Fourth series of fly ash-based geopolymers for each fiber was cast: 1, 2, and 5% by weight of fly ash and one control series without any fibers. Each series of samples were tested on flexural and compressive strength after 7, 14, and 28 days. Additionally, microstructural analysis was carried out after 28 days. The results have shown an increase in compressive strength for composites with fibers—an improvement in properties between 25.0% and 56.5% depending on the type and amount of fiber added. For bending strength, a clear increase in the strength value is visible for composites with 1 and 2% carbon fibers (62.4% and 115.6%). A slight increase in flexural strength also occurred for 1% addition of glass fiber (4.5%) and 2% addition of coconut fibers (5.4%). For the 2% addition of glass fibers, the flexural strength value did not change compared to the value obtained for the matrix material. For the remaining fiber additions, i.e., 5% glass fiber as well as 1 and 5% coconut fibers, the flexural strength values deteriorated. The results of the research are discussed in a comparative context and the properties of the obtained composites are juxtaposed with the properties of the standard materials used in the construction industry.
- Record ID
- CUT961194fda77c4e5292929a0913a7ff6a
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2021
- Vol
- 14
- No
- 16
- Pages
- [1-14]
- Article number
- 4599
- Other elements of collation
- rys.; tab.; Bibliografia (na s.) - 13-14; Bibliografia (liczba pozycji) - 41; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 14, Iss. 16
- Substantive notes
- This article belongs to the topic "Geopolymers: Synthesis, Characterization and Applications"
- Keywords in English
- geopolymer, fibers, mechanical properties
- DOI
- DOI:10.3390/ma14164599 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/14/16/4599 Opening in a new tab
- Related project
- Pianki geopolimerowe o niskiej przewodności cieplnej wytwarzane na bazie odpadów przemysłowych jako innowacyjny materiał dla gospodarki o obiegu zamkniętym. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Language
- eng (en) English
- License
- Score (nominal)
- 140
- Publication indicators
- = 22
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT961194fda77c4e5292929a0913a7ff6a/
- URN
urn:pkr-prod:CUT961194fda77c4e5292929a0913a7ff6a
* 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.