Behaviour of fly ash geopolymer at high temperature
Authors:
- Izabela Hager,
- Mateusz Sitarz,
- Katarzyna Mróz
Abstract
Geopolymer is an inorganic mineral binder in several applications an alternative to Portland cement. The driving force for the utilisation of geopolymers is their ability to consume industrial residues and by-products with the great potential to reduce mine tailings and industrial by-product piles. The study presents test results concerning the impact of high temperature on physical and the mechanical properties on fly ash geopolymers with different partial replacement of fly ash (FA) by ground granulated blast furnace slag (GGBFS). The objective of this study is to clarify the influence of high temperature up to 1000°C on the course of physical and mechanical properties changes in the further perspective to their application as passive fire protection material. Although the GGBFS addition has a very beneficial effect on the strength of geopolymer giving compressive strength over 100 MPa, at high temperature, unblended FA behaves much better. An increase in compressive strength was observed after heating at 200°C and 400°C. Moreover, at 1000°C a stage of strength recovery was observed.
- Record ID
- CUTf6967e14096d473facc14dbc07140552
- Publication categories
- ; ;
- Author
- Pages
- [555-559]
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - [5]; Bibliografia (liczba pozycji) - 16; Oznaczenie streszczenia - Abstr.
- Book
- Šolić Petar, Petar Šolić Nižetić Sandro, Sandro Nižetić Rodrigues Joel J.P.C. Joel J.P.C. Rodrigues [et al.] (eds.): 2020 5th International Conference on Smart and Sustainable Technologies (SpliTech), September 23-26, 2020 : virtually, 2020, Split, Institute of Electrical and Electronics Engineers, IEEE, ISBN 978-953-290-105-4 (electronic)
- Keywords in English
- fly ash, GGBFS, high temperature, geopolymer, FA, mechanical properties, microstructure
- DOI
- DOI:10.23919/SpliTech49282.2020.9243812 Opening in a new tab
- URL
- https://ieeexplore.ieee.org/document/9243812 Opening in a new tab
- Related project
- E-mobilność oraz zrównoważone materiały i technologie. . Project leader at PK: , ,
- Language
- eng (en) English
- Score (nominal)
- 20
- Publication indicators
- = 3
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTf6967e14096d473facc14dbc07140552/
- URN
urn:pkr-prod:CUTf6967e14096d473facc14dbc07140552
* 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.