PREPARING GLASS FOAM AT ROOM TEMPERATURE BY A NONCONVENTIONAL FOAMING TECHNIQUE
Abstract
The paper presents an innovative technique for manufacturing glass foams from recycled glass waste at room temperature by using aluminum powder and an aqueous solution of calcium hydroxide. The physical, thermal, mechanical and morphological characteristics of the foamed products (porosity between 82.9-86.2%, thermal conductivity in the range 0.061-0.081 W/m·K and compressive strength between 1.15-1.28 MPa) were similar to those of the foams manufactured by sintering at high temperatures. Glass foams produced by this new technique are suitable for use as thermal insulation materials for buildings.
References
2. Paunescu, L., Dragoescu, M.F., Axinte, S.M., Cosmulescu, F., Nonconventional manufacture technique of cellular glass from recycled aluminosilicate glass-based waste, Material Science & Engineering International Journal, Vol. 5, No. 1, pp. 11-16, (2021).
3. Hurley, J., Glass-Research and Development, Final report, A UK market survey for foam glass, The Waste and Resources Action Programme Publication, Banbury-Oxon, Great Britain, (2003).
4. Axinte, S.M., Paunescu, L., Dragoescu M.F., Sebe, A.C., Manufacture of glass foam by predominantly direct microwave heating of recycled glass waste, Transactions on Networks and Communications, Vol. 7, No. 4, pp. 37-45, (2019).
5. Oertel, G., Polyurethane Handbook, Second edition, Carl Hanser ed., Munich, Germany, (1993).
6. Kaneshira, S., Kanamori, S., Nagashima, K., Saeki, T., Visbal, H., Fukui, T., Hirao, K., Controllable hydrogen release via aluminium powder corrosion in calcium hydroxide solutions, Asian Ceramic Societies, Vol. 1, No. 3, pp. 296-303, September (2013).
7. Zeren, D., Güden, H., Sentürk, U., Room temperature foaming of glass powder in aqueous environment, Engineering Conferences International ECI: Syntactic and Composite Foams V, Siracusa, Italy, March 26-31, (2017). https://dc.engconfintl.org/syntactic_composite_foams_v
8. Ergun, R., Guo, J., Huebner-Keese, B., Cellulose-Carboxymethyl cellulose, Encyclopedia of Food and Health, pp. 694-702, (2016). https://www.doi.org/10.1016/B978-0-12-384947-2.00127-6
9. Dragoescu, M.F., Paunescu, L., Axinte, S.M., Fiti, A., Influence of the color of bottle glass waste on the characteristics of foam glass produced in microwave field, International Journal of Science and Engineering Investigations, Vol. 7, No. 72, pp. 95-100, (2018).
10. Manual of weighing applications, Part 1, Density, (1999). http://www.docplayer.net/21731890-Manual-of-weighing-applications-part-1-density_html
11. Anovitz L.M., Cole, D.R., Characterization and analysis of porosity and pore structures, Reviews in Mineralogy and Geochemistry, Vol. 80, pp. 61-164, (2005).
Copyright (c) 2021 Lucian Paunescu, Sorin Mircea Axinte, Marius Florin Dragoescu, Bogdan Valentin Paunescu
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