Influence of elevated temperatures on the mechanical properties of foamed geopolymer materials
Authors:
- B. Figiela,
- K. Korniejenko,
- M. Hebdowska-Krupa
Abstract
Current research focuses heavily on geopolymer concrete as possible applications for insulation materials. The aim of the research is to test the strength properties of lightweight geopolymer concrete after exposure to high temperatures. Waste material from the Wieczorek mine (Poland) was used to produce the foamed geopolymers. Alkaline activation took place by mixing the mine powder with an aqueous solution of sodium hydroxide combined with an aqueous sodium silicate with a concentration of 10 M. Prepared geopolymer samples after temperature curing at 75 °C for 24 hours in a laboratory dryer, they were seasoned for 28 days, after which the strength properties were determined. Mechanical tests: compressive strength and bending strength were carried out at temperatures: 20 °C, 200 °C, 600 °C, 800 °C, 1100 °C. Research has shown the precursor activation with the presence of hydrogen peroxide enabled the manufacturing of foamed geopolymers. Heating in the temperature range up to 1100 °C influenced, to some extent, the total porosity of the tested foams. The geopolymer foams based on coal gangue present stable mechanical properties in the range up to 800 °C. No sharp mechanical performances decrease or material chipping was observed. Only colour change of heated samples occurred.
- Record ID
- CUT9f5c079fdead413da332bf6a803658ee
- Publication categories
- ;
- Author
- Other language title versions
- Einfluss erhöhter temperaturen auf die mechanischen eigenschaften von geschäumten geopolywerkstoffen
- Journal series
- Materialwissenschaft und Werkstofftechnik, ISSN 0933-5137, e-ISSN 1521-4052
- Issue year
- 2023
- Vol
- 54
- No
- 4
- Pages
- 466-473
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 472-473; Bibliografia (liczba pozycji) - 28; Oznaczenie streszczenia - Streszcz. ang., niem.; Numeracja w czasopiśmie - Vol. 54, Iss. 4
- Keywords in English
- elevated temperature, geopolymer foam, geopolymers, mine waste
- ASJC Classification
- ; ; ;
- DOI
- DOI:10.1002/mawe.202200303 Opening in a new tab
- URL
- https://onlinelibrary.wiley.com/doi/pdf/10.1002/mawe.202200303 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
- Score (nominal)
- 40
- Score source
- journalList
- Score
- Publication indicators
- Citation count
- 1
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT9f5c079fdead413da332bf6a803658ee/
- URN
urn:pkr-prod:CUT9f5c079fdead413da332bf6a803658ee
* 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.