The use of calcined diatomite as an additive to geopolymeric materials
Authors:
- Kinga Pławecka,
- Agnieszka Bąk,
- Maria Hebdowska-Krupa,
- Michał Łach
Abstract
Diatomites are mineral resources formed from diatoms. They are widely used in sorption processes, medicine, cosmetology, and in protecting animals from parasites. Attempts are being made to incorporate them into concretes and construction binders to improve various performance properties. This paper presents the results of analyses (particle size analysis, XRD, and SEM) of a fine fraction of non-calcined and calcined diatomite as an additive to geopolymers made from fly ash from lignite combustion. The fly ash was also analyzed in the same way. Diatomite was introduced in its calcined and non-calcined form at 10%, 15%, and 30% by weight, replacing parts of the filler sand. The geopolymer mixtures were activated with 10 and 14 M aqueous sodium hydroxide solution with sodium water glass. As a result, it was found that it was possible to obtain geopolymers with diatomite additives with a compressive strength of about 34 MPa. In addition, after the strength tests, the microstructure of the obtained geopolymers was analyzed by scanning electron microscopy.
- Record ID
- CUTb35f2d98df604b9caa566704bfc83147
- Publication categories
- ; ;
- Author
- Pages
- 223-231
- Other elements of collation
- il.; Bibliografia (na s.) - 230-231; Bibliografia (liczba pozycji) - 25; Oznaczenie streszczenia - Abstr.
- Substantive notes
- Reprinted from.: Mater. Proc. ISSN 2673-4605, 2023, 13, 28
- Book
- Mróz Katarzyna, Katarzyna Mróz Tracz Tomasz, Tomasz Tracz Zdeb Tomasz Tomasz Zdeb [et al.] (eds.): 10th MATBUD’2023 Scientific-Technical Conference, 2023, Basel, MDPI, 365, [5] p., ISBN 978-3-0365-7094-5 (Hbk). DOI:10.3390/books978-3-0365-7095-2 Opening in a new tab
- Keywords in English
- diatomite, geopolymer materials, ash from lignite combustion
- DOI
- DOI:10.3390/materproc2023013028 Opening in a new tab
- URL
- https://www.mdpi.com/books/book/7015-10th-matbud-2023-scientific-technical-conference Opening in a new tab
- Related project
- Language
- eng (en) English
- License
- Score (nominal)
- 5
- Score source
- publisherList
- Score
- = 5.0, 02-03-2024, ChapterFromConference
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb35f2d98df604b9caa566704bfc83147/
- URN
urn:pkr-prod:CUTb35f2d98df604b9caa566704bfc83147
* 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.