University of Oulu

Patrick N. Lemougna, Juho Yliniemi, Hoang Nguyen, Elijah Adesanya, Pekka Tanskanen, Paivo Kinnunen, Juha Roning, Mirja Illikainen, Utilisation of glass wool waste and mine tailings in high performance building ceramics, Journal of Building Engineering, Volume 31, 2020, 101383, ISSN 2352-7102,

Utilisation of glass wool waste and mine tailings in high performance building ceramics

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Author: Lemougna, Patrick N.1; Yliniemi, Juho1; Nguyen, Hoang1;
Organizations: 1Faculty of Technology, Fibre and Particle Engineering Research Unit, PO Box 4300, 90014, University of Oulu, Finland
2Process Metallurgy Research Unit, University of Oulu, P.O. Box 4300, 90014, Oulu, Finland
3InfoTech Oulu, Faculty of Information Technology and Electrical Engineering, Biomimetics and Intelligent Systems Group (BISG), University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.1 MB)
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Language: English
Published: Elsevier, 2020
Publish Date: 2022-04-11


The generation of glass wool waste and mine tailings has raised increasing concerns. This paper deals with the reuse of glass wool waste and lithium mine tailings from spodumene ore (quartz feldspar sand; QFS) in the development of building ceramic materials. The effect of glass wool particle size and sintering temperatures (750, 850 and 950 °C) were investigated. Phase composition and sintering reactions were studied using several techniques including X-ray diffraction with Rietveld refinement, differential scanning calorimetry, scanning electron microscopy, density, water absorption and mechanical tests. The results showed that glass wool acted as fluxing agent, with melting reactions observed from about 700 °C. Grinding glass wool improved its reactivity, enhancing densification and strength development at lower temperatures. The properties of the prepared building ceramics satisfied the requirement of building materials according to ASTM C62, achieving high performance values of 90 MPa and 25 MPa for compressive and flexural strength respectively. These results are of interest for the reuse of glass wool waste, QFS and similar waste streams in building ceramics.

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Series: Journal of building engineering
ISSN: 2352-7102
ISSN-E: 2352-7102
ISSN-L: 2352-7102
Volume: 31
Article number: 101383
DOI: 10.1016/j.jobe.2020.101383
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
216 Materials engineering
218 Environmental engineering
Funding: This work was performed under the framework of the “GEOBOT” project, supported by the European Regional Development Fund ( ERDF), Pohjois-Pohjanmaa Council of Oulu Region and Vipuvoimaa EU:lta 2014–2020 and companies Boliden Harjavalta Oy, Keliber Oy and Saint-Gobain Finland Oy. Part of the work was carried out with the support of the Centre for Material Analysis, University of Oulu, Finland. The contribution of Merja Peratalo in laboratory work is also appreciated.
Copyright information: © 2020 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license