Reference | Presenter | Authors (Institution) | Abstract |
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03-044 | Marcondes Mendes Souza | Souza, M.M.(Instituto Federal de Educação, ciência e tecnologia do Rio Grande do Norte); | Brazilians companies of producing ceramic materials for civil construction are becoming aware of the need to avoid waste and promote recycling and waste use, with this, the increasing demand of the market in relation to the use of ornamental rocks in construction as a coating has as allied the state of Rio Grande do Norte which presents a geological ambience extremely favorable to the existence of excellent deposits of ornamental rocks. The mining activity is arguably necessary for the development of societies in its most diverse productive sectors, thus being one of the pillars of the economic and political powers. But inevitably, this one is associated with negative environmental impacts, such as the generation of waste from the extraction and the processing of ornamental rocks. In this way, this work aims, by means of a theoretical and experimental research, to evaluate the study of the addition of residues of the sawdust of ornamental rock from the Parelha’s region in Rio Grande do Norte, using as raw material for ceramic coating manufacturing. The tests were carried out following the technical standards of the Brazilian ceramic coating (NBR 13818:1997). Two distinct formulations were tested: F1, with 10% residue of the sawdust of ornamental rocks, 15% quartz, 35% clay and 40% feldspar while in the other formulation, F2, had: 5% residue of the sawdust of ornamental rocks, 15% quartz, 40% feldspar and 40% Clay. The test bodies were pressed in a 1-axial press under 25 MPa, sintered at a temperature of 1200 °c and subjected to the physical water absorption test, having as average results of 0.5 and 0.8% for formulations F1 and F2, respectively, causing the test bodies to fit into the specification group: stoneware-BIb. |
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