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Title:Potential of green ceramics waste for alkali activated foams
Authors:ID Horvat, Barbara (Author)
ID Ducman, Vilma (Author)
Files:URL URL - Source URL, visit https://www.mdpi.com/1996-1944/12/21/3563
 
.pdf PDF - Presentation file, download (6,88 MB)
MD5: 34B1B8BDFF75FC648A5C8AAF3E4EABDB
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:The aim of the paper is to research the influence of foaming and stabilization agents in the alkali activation process of waste green ceramics for future low cost up-cycling into lightweight porous thermal insulating material. Green waste ceramics, which is used in the present article, is a green body residue (non-successful intermediate-product) in the synthesis of technical ceramics for fuses. This residue was alkali activated with Na-water glass and NaOH in theoretically determined ratio based on data from X-ray fluorescence (XRF) and X-ray powder diffraction (XRD) that was set to maximise mechanical properties and to avoid efflorescence. Prepared mixtures were compared to alkali activated material prepared in theoretically less favourable ratios, and tested on the strength and density. Selected mixtures were further foamed with different foaming agents, that are Na-perborate (s), H2O2 (l), and Al (s), and supported by a stabilization agent, i.e., Na-dodecyl sulphate. The goal of the presented work was to prepare alkali activated foam based on green ceramics with density below 1 kg/l and compressive strength above 1 MPa.
Keywords:alkali activation, foaming, SEM, XRF, XRD, mechanical strength
Publication status:Published
Publication version:Version of Record
Publication date:30.10.2019
Publisher:Molecular Diversity Preservation International
Year of publishing:2019
Number of pages:str. 1-30
Numbering:Vol. 12, no. 21
PID:20.500.12556/DiRROS-16978 New window
UDC:620.1/.2
ISSN on article:1996-1944
DOI:10.3390/ma12213563 New window
COBISS.SI-ID:2489447 New window
Copyright:© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
Note:Nasl. z nasl. zaslona; Opis vira z dne 4. 11. 2019; Številka članka : 3563;
Publication date in DiRROS:14.09.2023
Views:852
Downloads:409
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HORVAT, Barbara and DUCMAN, Vilma, 2019, Potential of green ceramics waste for alkali activated foams. Materials [online]. 2019. Vol. 12, no. 21, p. 1–30. [Accessed 19 March 2025]. DOI 10.3390/ma12213563. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=16978
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Record is a part of a journal

Title:Materials
Shortened title:Materials
Publisher:Molecular Diversity Preservation International
ISSN:1996-1944
COBISS.SI-ID:33588485 New window

Document is financed by a project

Funder:Other - Other funder or multiple funders
Project number:C3330-17-529032
Name:Raziskovalci-2.0-ZAG-529032
Funder:ARRS - Slovenian Research Agency
Project number:J2-9197
Name:Sinteza in karakterizacija alkalijsko aktiviranih pen na osnovi odpadnih materialov

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:alkalijska aktivacija, penjenje, mehanska trdnost


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