Rheology and mechanical properties of fly ash-based geopolymer mortars with ground granulated blast furnace slag addition
Authors:
- Mateusz Sitarz,
- Maciej Urban,
- Izabela Hager
Abstract
Geopolymers are less energy-demanding alternatives to Portland cement binders. The subject of geopolymer rheology has not yet been fully explored, and the available literature is limited to a narrow range of material compositions. This paper presents the rheological and mechanical response of fly-ash based geopolymer mortars. Investigations were made of the effect of different levels of ground granulated blast furnace slag (GGBFS) addition levels on the rheological properties of fresh geopolymers as well as their mechanical performances at 2, 14 and 28 days. The aim of the study was to obtain flow curves and to establish the correlation between shear stress and shear rate. The results have shown that geopolymer mortar is a pseudoplastic liquid presenting shear thinning behavior, moreover, with the increase of GGBFS content, higher material strengths were obtained and the total porosity was reduced.
- Record ID
- CUT454225d8c13a40919634a841e2cfe13c
- Publication categories
- ;
- Author
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2020
- Vol
- 13
- No
- 10
- Pages
- [1-12]
- Article number
- 2639
- Other elements of collation
- tab.; wykr.; Bibliografia (na s.) - 11-12; Bibliografia (liczba pozycji) - 44; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 13, Iss. 10
- Substantive notes
- Artykuł należy do sekcji: Energy and Buildings
- Keywords in English
- rheology, GGBFS, fly ash geopolymer, viscosity, strength, sustainability
- DOI
- DOI:10.3390/en13102639 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/13/10/2639 Opening in a new tab
- Related project
- E-mobilność oraz zrównoważone materiały i technologie. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Publication indicators
- = 26
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT454225d8c13a40919634a841e2cfe13c/
- URN
urn:pkr-prod:CUT454225d8c13a40919634a841e2cfe13c
* 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.