Application of diatomite as a substitute for fly ash in foamed geopolymers
Authors:
- Karolina Brudny,
- Michał Łach,
- Agnieszka Bąk,
- Kinga Pławecka,
- Kinga Korniejenko
Abstract
In recent years, new climate targets in EU have led to a growing demand for construction materials with a lower carbon footprint. This implies a demand for research on materials with comparable properties and reduced CO2 emission to replace those currently in use. Geopolymers belong to the group of alkali-activated aluminosilicates, whose advantages include high compressive strength and high corrosion resistance. Examples of aluminosilicate materials used to produce geopolymers are fly ash, metakaolin or volcanic tuff. Recently, there have also been papers discussing the use of diatomite as a replacement for metakaolin in geopolymer materials. The purpose of this work is to investigate the use of diatomite as a fly ash replacement in the production of foamed geopolymers. For this purpose, fly ash based geopolymer samples with different amounts of diatomite (5%, 10%, 50%) were foamed using hydrogen peroxide as a foaming agent. Then, to observe the microstructure of the produced samples, they were subjected to scanning microscope observations. Compressive strength tests according to EN 12390-3 standard were carried out to check the strength properties after 30 days of curing. In addition, the thermal conductivity coefficients of the samples were investigated to better determine their potential industrial application. The expected result is a change in strength and thermal properties with increasing diatomite content.
- Record ID
- CUT1b4cd0b0c1f9444584af82110ca1f254
- Publication categories
- ; ;
- Author
- Journal series
- Journal of Physics - Conference Series, ISSN 1742-6588, e-ISSN 1742-6596, [1742-6596]
- Issue year
- 2023
- Vol
- 2423
- Pages
- [1-9]
- Article number
- 012028
- Other elements of collation
- rys.; tab.; Bibliografia (na s.) - 8-9; Bibliografia (liczba pozycji) - 39; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 2423
- Conference
- 5th International Conference: Innovative Materials, Structures and Technologies (IMST 2022), 2022, 28-09-2022 - 30-09-2022, Ryga, Łotwa
- Keywords in English
- foamed geopolymers, diatomite, thermal properties
- ASJC Classification
- DOI
- DOI:10.1088/1742-6596/2423/1/012028 Opening in a new tab
- URL
- https://iopscience.iop.org/article/10.1088/1742-6596/2423/1/012028 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 (] - Opracowanie i demonstracja technologii wytwarzania wysoko efektywnych sorbentów na bazie diatomitu oraz wypełniaczy diatomitowych. . Project leader at PK: , ,
- 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: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 40
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT1b4cd0b0c1f9444584af82110ca1f254/
- URN
urn:pkr-prod:CUT1b4cd0b0c1f9444584af82110ca1f254
* 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.