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- Title
Reciclagem do resíduo da serragem de calcário laminado para produção de blocos cerâmicos.
- Authors
Menezes, Romualdo R.; Melo, Luiz Ronaldo L.; Fonsêca, Francisco Antonio Santos; Souto, Pollyane M.; de A. Neves, Gelmires; Santana, Lisiane N. L.
- Abstract
The mining and processing industries of laminated calcite tile are an important economic sector in the State of Ceará. However, they generate a large amount of wastes, which are a source of contamination and environmental pollution. This study aimed to characterize the laminated calcite tile sawing waste and evaluate its suitability as an alternative ceramic raw material for the production of bricks and roof tiles. The waste was characterized by chemical composition determination, X-ray diffraction, differential thermal analyses, particle size distribution determination, and morphological analysis by electronic scanning microscopy. Several formulations were prepared and sample bodies were prepared by uniaxial pressing. The sample bodies were fired at different temperatures. Sintered samples were characterized in terms of water absorption and mechanical strength. The results showed that the waste is composed of calcite and dolomite, that presents a high level of fines. As such, it is possible to incorporate up to 10% for the production of ceramic bricks and roof tiles.
- Subjects
MINERAL industries; MINES &; mineral resources; CALCITE; OPTICAL diffraction; CONSTRUCTION materials; CERAMICS; TILES; RAW materials; MATERIALS; BUILDING material manufacturing; BUILDING materials dealers
- Publication
Rem: Revista Escola de Minas, 2010, Vol 63, Issue 4, p667
- ISSN
0370-4467
- Publication type
Article
- DOI
10.1590/S0370-44672010000400011