Possibilities of using geopolymers in welding processes and protection against high temperatures
Authors:
- Sławomir Parzych,
- Maja Paszkowska,
- Dawid Stanisz,
- Agnieszka Bąk,
- Michał Łach
Abstract
Geopolymer materials have long been known for their competitive properties against traditional construction materials. Their special features include high resistance to elevated temperatures and good fire resistance. They are typically used as insulating materials at temperatures not exceeding 100 °C (because they can achieve a thermal conductivity coefficient of 0.060 W/m×K or less under these conditions). Still, they can also be used as thermal insulation at temperatures exceeding 1000 °C. One technology that uses very high temperatures is metal welding technology, where temperatures often exceed as many as 3000 °C. Geopolymers, due to their properties, can also be an interesting new alternative in various welding applications. This paper presents the preliminary results of pot-proofing the resistance of geopolymers to temperatures exceeding 3000 °C. Test results of a foamed geopolymer insulating a steel substrate are presented, and a geopolymer mold for thermite rail welding was made and realistically tested. The results confirmed the feasibility of using cast geopolymer molds for thermite welding of railroad rails. The geopolymer material performed well during the test and no cracks or other damage occurred. The following article presents the potential of using geopolymer materials for welding applications.
- Record ID
- CUT43a5a6d9bffa4ed099a68fbbf91fd5fc
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2023
- Vol
- 16
- No
- 21
- Pages
- [1-15]
- Article number
- 7035
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 13-15; Bibliografia (liczba pozycji) - 48; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 16, Iss. 21
- Substantive notes
- Special Issue: Geopolymers and Fiber-Reinforced Concrete Composites
- Keywords in English
- geopolymers, welding process, heat and fire resistance, high temperatures
- ASJC Classification
- DOI
- DOI:10.3390/ma16217035 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/16/21/7035 Opening in a new tab
- Related project
- Development of technology for additive production of environmentally friendly and safe insulation materials and able to accumulate heat based on the alkaline activation of anthropogenic raw materials. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT43a5a6d9bffa4ed099a68fbbf91fd5fc/
- URN
urn:pkr-prod:CUT43a5a6d9bffa4ed099a68fbbf91fd5fc
* 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.