Evaluation of the Effect of the Incorporation of Blends of Fuel and Fluxing Wastes in Red Clay Ceramics

• Autor(a) principal: Barreto,Gabriela Nunes Sales
• Data de Publicação: 2019
• Outros Autores: Babisk,Michelle Pereira, Delaqua,Geovana Carla Girondi, Gadioli,Monica Castoldi Borlini, Vieira,Carlos Maurício Fontes
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Materials research (São Carlos. Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700266
• topic: Red ceramics; fuel wastes; fluxing wastes; Eichhornia crassipes; granite

The clay samples endure the incorporation of industrial and urban wastes, which do not cause large variations in their properties if added in controlled quantities. Wastes can be classified as fuel, fluxing and property affecting wastes. The fuel wastes usually have a high amount of organic matter, that when heated cause exothermic reactions, releasing heat to the process. The fluxing wastes cause a reduction in the ceramic melting points. The main aim of this work was to study the behavior of ceramics incorporated with fuel wastes (Eichhornia crassipes dry biomass) and fluxing wastes (granite) as well as blends of both wastes. Different compositions were prepared with incorporation of different percentages of these wastes in the clay samples, conformed by uniaxial pressing and fired at 550, 650, 750, 850, 950 e 1050ºC. The technological properties tested were: dry apparent density, linear shrinkage, water absorption and flexural rupture strength. Results indicate that the high calorific value of the biomass waste represents a great possibility of saving energy for the firing process. Incorporations can be indicated as a possibility of correct destination for the investigated wastes.