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Title:Waste rubber incorporated in the alkali-activated metakaolin’s aluminosilicate network enhanced by microwave irradiation
Authors:ID Horvat, Barbara (Author)
ID Mušič, Branka (Author)
Files:URL URL - Source URL, visit https://doi.org/10.18690/um.fkkt.1.2024
 
.pdf PDF - Presentation file, download (13,99 MB)
MD5: 18ED8F349B590FA35F0278137BBECFCC
 
Language:English
Typology:1.08 - Published Scientific Conference Contribution
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:Building materials represent the possibility of prolonging the life of waste materials. The key is to ensure that the products are suitable for their function. So we activated metakaolin with the alkaline Na-silicate solution in the ratio that ensures the prevention of efflorescence and high mechanical strength (Horvat and Ducman, 2019). As the waste material (to be incorporated in the aluminosilicate network (ASN) of the alkali-activated metakaolin) ground waste rubber from electric cables was used in the preselected mass ratios. Its inclusion in products, like paving stones, can reduce stiffness, improve durability, dampen vibrations, and reduce road noise. The mechanical strengths of test samples with rubber present on the active surface or slightly below were higher compared to samples where rubber was encapsulated throughout the volume. Compressive strength was higher when samples were irradiated with low powers of microwaves while irradiation with higher powers led to the foaming of alkali-activated slurry. The encapsulation quality of the ground rubber was evaluated by SEM while the chemical influence on ASN was determined by EDS, FTIR, and XRD. Slipperiness change on the active surface of pavement stones proved that the addition of the ground rubber enhanced the walking safety of the product.
Keywords:secondary raw material, alkali activated material, waste rubber, metakaolin, encapsulation of organic in inorganic material, microwave irradiation, mechanical strength
Publication status:Published
Publication version:Version of Record
Publication date:26.02.2024
Publisher:University of Maribor, University Press, Faculty of Chemistry and Chemical Engineering
Year of publishing:2024
Number of pages:Str. [19]-51
PID:20.500.12556/DiRROS-18385 New window
UDC:620.1/.2
DOI:10.18690/um.fkkt.1.2024.5 New window
COBISS.SI-ID:188459523 New window
Copyright:© University of Maribor, University Press Text / besedilo © Authors & Potrč, Bogataj, Kravanja, Novak Pintarič, 2024
Note:Nasl. z nasl. zaslona; Opis vira z dne 11. 3. 2024;
Publication date in DiRROS:12.03.2024
Views:1171
Downloads:616
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HORVAT, Barbara and MUŠIČ, Branka, 2024, Waste rubber incorporated in the alkali-activated metakaolin’s aluminosilicate network enhanced by microwave irradiation. In : 6th International Conference on Technologies & Business Models for Circular Economy [online]. Published Scientific Conference Contribution. Maribor : University of Maribor, University Press, Faculty of Chemistry and Chemical Engineering. 2024. p. 19–51. [Accessed 24 March 2025]. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=18385
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Record is a part of a monograph

Title:6th International Conference on Technologies & Business Models for Circular Economy : conference proceedings
Editors:Sanja Potrč, Miloš Bogataj, Zdravko Kravanja, Zorka Novak-Pintarič
Place of publishing:Maribor
Publisher:University of Maribor, University Press, Faculty of Chemistry and Chemical Engineering
Year of publishing:2024
ISBN:978-961-286-829-1
COBISS.SI-ID:186707203 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J2-3035
Name:Sinteza alkalijsko aktiviranih materialov s pomočjo mikrovalov
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0273
Name:Gradbeni objekti in materiali

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

Language:Slovenian
Keywords:sekundarne surovine, alkalijsko aktivirani materiali, odpadna guma, metakaolin, vgradnja organskih snovi v anorganskih, mikrovalovno obsevanje, tlačna trdnost


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