SIMULTANEOUS USE OF LIQUID AND SOLID FOAMING AGENTS BY A NONCONVENTIONAL TECHNIQUE TO OBTAIN A HIGH-STRENGTH GLASS FOAM WITH FINE POROSITY
Keywords:
glass foam, microwave heating, glass waste, glycerol, sodium silicate, calcium carbonate
Abstract
A glass foam with typical characteristics for a foam glass gravel usable as a thermal insulating material in difficult climatic conditions and with mechanical stress was made by sintering at 834 ºC a powder mixture composed of colorless glass waste (93.1 wt.%), glycerol (1.0 wt.%), sodium silicate (4.8 wt.%), calcium carbonate (0.8 wt.%), kaolin (0.2 wt.%) and water addition (14.5 wt.%). The physical, thermal, mechanical and morphological characteristics of the product were: apparent density of 0.28 g/cm3, porosity of 86.67%, thermal conductivity of 0.063 W/m·K, compressive strength of 7.3 MPa, water absorption of 4.3% and pore size between 0.10-0.35 mm. The specific energy consumption of the manufacturing process was 0.78 kWh/kg. The originality of the work is the use of a nonconventional heating technique based on the microwave energy.
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2. Scarinci, G., Brusatin, G., Bernardo, E., Cellular Ceramics: Structure, Manufacturing, Properties and Applications, Wiley-VCH GmbH & KGaA, Weinheim, Germany, Scheffler, M., Colombo, P. eds., pp. 158-176, (2005).
3. Hurley, J., Glass-Research and Development, Final report, A UK market survey for foam glass, Banbury-Oxon, United Kingdom, The Waste and Resources Action Programme Publication, (2003).
4. Technical Information-TECHNOpor. http://www.technopor.com
5. TECHNOpor in the UK/Green Construction, (2005). https://www.green-construction.org.uk/recycled-roducts/technopor-in-the-UK
6. Zegowitz, A., Cellular glass aggregate serving as thermal insulation and a drainage layer. https://web.ornl.gov>conf-archive>48_Zegowitz
7. Foamglas Building. Thermal insulation systems for the entire building envelope. https://uk.foamglas.com/-/media/ukfoamglascom/alle-dokumente/building/downloads/documentation/pcuk_en_00-broch-corporate_ok.pdf
8. Cosmulescu, F., Paunescu, L., Dragoescu, M.F., Axinte, S.M., Comparative analysis of the foam glass gravel types experimentally produced by microwave irradiation, Journal of Engineering Studies and Research, Vol. 26, No. 3, pp. 58-68, (2020).
9. Sooksaen, P., Sudyod, N., Thongtha, N., Simsomboonphol, R., Fabrication of lightweight foam glasses for thermal insulation applications, Materials Today: Proceedings, Vol. 17, Part 4, pp. 1823-1830, (2019). https://www.doi.org/10.1016/j.matpr.2019.06.219Get_rights_and_content
10. Karandashova, N. S., Goltsman, B. M., Yatsenko, E. A., Analysis of influence of foaming mixture components on structure and properties of foam glass, IOP Conference Series: Materials Science and Engineering, Vol. 262, (2017). https://www.iopscience.iop.org>article>262
11. Karunadasa, K.S.P., Manoratne, C.H., Pitawala, H.M.T.G.A., Rappakse, R.M.G., Thermal decomposition of calcium carbonate (calcite polymorph) as examined by in-situ high-temperature X-ray powder diffraction, Journal of Physics and Chemistry of Solids, Vol. 134, pp. 21-28, (2019).
12. Paunescu, L., Dragoescu, M.F., Axinte, S.M., Cosmulescu, F., Unconventional technique for producing borosilicate glass foam, Journal La Multiapp, Vol. 1, No. 6, pp. 12-22, (2020).
13. Paunescu, L., Dragoescu, M.F., Cosmulescu, F., Enhanced manufacturing technique of cellular glass-ceramic using the microwave energy, Nonconventional Technologies Review, Vol. 24, No. 4, pp. 86-91, (2020).
14. 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. 4, No. 1, pp. 11-16, (2021).
15. Paunescu, L., Axinte, S.M., Grigoras, B.T., Dragoescu, M.F., Fiti, A., Testing the use of microwave energy to produce foam glass, European Journal of Engineering and Technology, Vol. 5, No. 4, pp. 8-17, (2017).
16. Paunescu, L., Dragoescu, M.F., Axinte, S.M., Sebe, A.C., Lightweight aggregate from recycled masonry rubble achieved in microwave field, Nonconventional Technologies Review, Vol. 23, No. 2, pp. 47-51, (2019).
17. Jones, D.A., Lelyveld, T.P., Mavrofidis, S.D., Kingman, S.W., Miles, N.J., Microwave heating applications in environmental engineering–a review, Resources, Conservation and Recycling, Vol. 34, pp. 75-90, (2002).
18. Kitchen, H.J., Vallance, S.R., Kennedy, J.L., Tapia-Ruiz, N., Carassiti, L., Modern microwave methods in solid-state inorganic materials chemistry: From fundamentals to manufacturing, Chemical Reviews, Vol. 114, pp. 1170-1206, (2014).
19. 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).
20. Yahaga, S., Jikan, S.S., Badarulzaman, N.A., Adamu, A.D., Chemical composition and particle size analysis of kaolin, Traektoriâ Nauki-Path of Science, Vol. 3, No. 10, (2017), https://www.doi.org/10.22178/pas.27-1
21. Manual of weighing applications, Part 1, Density, (1999). http://www.docplayer.net/21731890-Manual-of-weighing-applications-part-1-density_html
22. 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).
Published
2021-06-30
How to Cite
Paunescu, L., Axinte, S., Dragoescu, M., Cosmulescu, F., & Paunescu, B. (2021). SIMULTANEOUS USE OF LIQUID AND SOLID FOAMING AGENTS BY A NONCONVENTIONAL TECHNIQUE TO OBTAIN A HIGH-STRENGTH GLASS FOAM WITH FINE POROSITY. Nonconventional Technologies Review, 25(2). Retrieved from http://revtn.ro/index.php/revtn/article/view/333
Section
Articles
Copyright (c) 2021 Lucian Paunescu, Sorin Mircea Axinte, Marius Florin Dragoescu, Felicia Cosmulescu, Bogdan Valentin Paunescu
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
