2024, Volume 70(74), Issue 1 (January), pp. 69 - 80

Strength and Porous Building Material Prepared from Recycled Residual Glass Through Microwave Radiation

LUCIAN PĂUNESCU, Daily Sourcing & Research SRL Bucharest, Romania, lucianpaunescu16@gmail.com
SORIN MIRCEA AXINTE, Daily Sourcing & Research SRL Bucharest, Romania, National University of Science and Technology POLITEHNICA Bucharest, Faculty of Applied Chemistry and Materials Science, Bucharest, Romania

pages 69 - 80   Download
DOI: 10.5281/zenodo.11145677
Abstract
New method of producing strength and porous cellular glass with load-bearing properties from recycled flat glass using simultaneously two expanding agents: glycerol (liquid) and eggshell (solid) recycled as a by-product from the food industry was designed and tested by microwave heating. Eggshell was used as a substitute for the usual calcium carbonate and the microwave heating was made by the original method of predominantly direct and partially indirect heating leading to energy saving. Results showed that cellular glass with low bulk density (0.16-0.19 g·cm-3) and high compression strength (up to 7.6 MPa) were obtained.
Keywords: cellular glass, flat glass waste, microwave heating, glycerol, eggshell.