• Galhano, Carlos
• Simão, Joaquim
• Elias, João Manuel Pereira

Abstract

The production of urban solid waste (USW) is constantly growing due to the industrial and population development. Although the incineration process<br/>reduces the volume, mass and hazardousness of these wastes, huge areas are still required for their disposal. To minimize the impacts associated with its<br/>landfill and to create an ecological material, the present study consists in the recovery of ashes resulting from the incineration of USW through its incorporation<br/>in the production of ceramic materials. The laboratory study was carried out in the preparation of ceramic samples with 0, 5, 10, 15 and 20% of ash,<br/>fired at 900, 1000 and 1100°C and, in the performance of tests for their physical and mechanical characterization. Based on the obtained results it was<br/>possible to verify that the ceramic material, with addition of residue obtained lower values of retraction, conducing to a better conservation of its dimensions.<br/>In addition, it presented a lower apparent bulk density and higher open porosity, which may facilitate its fixation, when applied as cladding material.

Topics

• density
• impedance spectroscopy
• porosity
• ceramic