Mechanical properties of wood fiber reinforced geopolymer composites with sand addition
Authors:
- Gabriel Furtos,
- Laura Silaghi-Dumitrescu,
- Petru Pascuta,
- Codruta Sarosi,
- Kinga Korniejenko
Abstract
Fly ash-based geopolymers can be considered as a greener alternative to ordinary Portland cement, featuring comparable properties and cost yet with lower CO2 emissions. New wood fiber reinforced geopolymer composites with sand addition (WFSGC) have been synthesized at room temperature by mixing powder (fly ash, sand and randomly reinforced wood fiber) with sodium silicate and sodium hydroxide as alkaline activators. New WFSGC were cured at 90°C for 24 h. The design and investigation of WFSGC were based on a fix 5 wt.% percentage of sand, with variable wood fiber (5, 10, 15, 20, 25, 30 and 35 wt.%) and fly ash percentages. These WFSGC showed decreasing mechanical properties with increasing wood fiber addition as measured by the compressive strength at the cylindrical test (21.76–42.52 MPa), the compressive strength at the cubic test (31.79–39.17 MPa), the force load at upper yield at the cylindrical test (1.27–3.58KN), the flexural strength (7–10.76 MPa), compressive modulus at the cylindrical test (590,75–1021.17 MPa), the compressive modulus at cubic test (787.92–1059.79 MPa) and the flexural modulus (298.03–737.83 MPa). The density of WFRGC decreases with the addition of wood fiber (1.49–1.71 g/cm3). WFSGC with addition wood fibers up to 15 wt.% could be the limit for a promising green material for construction.
- Record ID
- CUTb9daeeb3fe9d433d82561863646c7ad6
- Publication categories
- ;
- Author
- Journal series
- Journal of Natural Fibers, ISSN 1544-0478, e-ISSN 1544-046X
- Issue year
- 2021
- Vol
- 18
- No
- 2
- Pages
- 267-296
- Other elements of collation
- il. (w tym kolor.); Bibliografia (na s.) - 294-296; Oznaczenie streszczenia - Streszcz. ang., chin.; Data udostępnienia on-line - 2019-06-19; Numeracja w czasopiśmie - Vol. 18, No. 2
- Keywords in English
- wood fiber, fly ash, sand, geopolymer composites
- DOI
- DOI:10.1080/15440478.2019.1621792 Opening in a new tab
- URL
- https://www.tandfonline.com/doi/full/10.1080/15440478.2019.1621792 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 140
- Publication indicators
- = 53
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb9daeeb3fe9d433d82561863646c7ad6/
- URN
urn:pkr-prod:CUTb9daeeb3fe9d433d82561863646c7ad6
* 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.