Red Ceramics Produced with Primary Processing Fine Waste of Ornamental Stones According to the Circular Economy Model

Mariane Costalonga de Aguiar (), Mônica Castoldi Borlini Gadioli (), Maria Angelica Kramer Sant’Ana, Kayrone Marvila de Almeida, Francisco Wilson Hollanda Vidal and Carlos Maurício Fontes Vieira
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Mariane Costalonga de Aguiar: Centre for Mineral Technology-State of Espirito Santo Branch-CETEM/NRES, Cachoeiro de Itapemirim 29311-970, ES, Brazil
Mônica Castoldi Borlini Gadioli: Centre for Mineral Technology-State of Espirito Santo Branch-CETEM/NRES, Cachoeiro de Itapemirim 29311-970, ES, Brazil
Maria Angelica Kramer Sant’Ana: Centre for Mineral Technology-State of Espirito Santo Branch-CETEM/NRES, Cachoeiro de Itapemirim 29311-970, ES, Brazil
Kayrone Marvila de Almeida: Centre for Mineral Technology-State of Espirito Santo Branch-CETEM/NRES, Cachoeiro de Itapemirim 29311-970, ES, Brazil
Francisco Wilson Hollanda Vidal: Centre for Mineral Technology-State of Espirito Santo Branch-CETEM/NRES, Cachoeiro de Itapemirim 29311-970, ES, Brazil
Carlos Maurício Fontes Vieira: Advanced Materials Laboratory (LAMAV), State University of Northern Fluminense-UENF, Campos dos Goytacazes 28013-602, RJ, Brazil

Sustainability, 2022, vol. 14, issue 19, 1-13

Abstract: The ornamental stone industry is growing and has a large production in Brazil, mainly in Espírito Santo, where the largest production in the country is concentrated. Brazil is part of the group of countries that produce the most ornamental stones in the world; however, the generation of waste in this sector is very large. These ornamental stone wastes when used for the manufacture of new materials, such as red ceramics, contribute to the reduction in the raw material clay and to the reduction in the environmental impact. The objective of this work was to incorporate fine wastes from the processing of ornamental stones called FIBRO in red ceramics and later, to contribute to the standardization of the use of these wastes in the ceramic industry, contributing to the manufacture of more economical and sustainable products. Wastes were incorporated in the proportion of 0 to 50% by mass that were prepared by extrusion and fired at 900 °C, 950 °C, and 1000 °C. After firing, the physical and mechanical properties of the ceramic material were evaluated. Specific mass apparent, water absorption, porosity, and flexural strength by three points tests were carried out. The results showed that from 30% at the lowest temperature, tile is already fabricated within the values stipulated by the standards, thus saving energy. The analyzed waste is a material with excellent chemical characteristics to be used in the ceramic mass, in addition to having improved the technological properties of the material, such as less water absorption and greater flexural strength.

Keywords: sustainability; environmental impact; ornamental stone waste (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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