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      Avaliação da potencialidade de argilas da formação geológica Calumbi e Riachuelo em Sergipe para aplicação em revestimento cerâmico Translated title: Evaluation of the potenciality of clays from the Calumbi and Riachuelo geological formation in Sergipe, Brazil, for application in ceramic tiles

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          Abstract

          As argilas são os materiais mais importantes do ponto de vista tecnológico para fabricação de materiais cerâmicos. A sua composição química e mineralógica influencia fortemente as propriedades físicas e químicas que se deseja obter no produto acabado de cerâmica. O objetivo desse trabalho foi avaliar a potencialidade de argilas da formação geológica Calumbi e Riachuelo do estado de Sergipe para aplicação em revestimento cerâmico. Foram coletadas amostras de 3 depósitos argilosos (A, B e C) e caracterizadas por ensaios de granulometria, plasticidade, difração de raios X, análises termogravimétrica e diferencial, infravermelho e fluorescência de raios X. As principais fases identificadas foram quartzo, caulinita, ilita, calcita e feldspatos, sendo que os depósitos B e C apresentaram elevados teores de calcita. Constatou-se que para as condições do processamento cerâmico adotadas as argilas dos depósitos A e B devidamente misturadas são adequadas para serem utilizadas na indústria de processamento de pisos cerâmicos, em especial para a obtenção da classificação do grupo cerâmico BIII.

          Translated abstract

          Clays are the most important materials from the technological point of view, for the production of ceramic materials. Its chemical and mineralogical composition strongly influences the physical and chemical properties to be obtained in the finished product of ceramic. The aim of this paper was to evaluate the potential of clays of the Calumbi and Riachuelo geological formation in Sergipe, Brazil, for the application in ceramic tiles. Samples were collected from 03 clay deposits ("A", "B" and "C") and characterized by granulometryassays, plasticity, X-ray diffraction, and differential thermogravimetric analysis, infrared and X-ray fluorescence. The main identified phases were: quartz, kaolinite, illite, calcite and feldspar, and deposits "B" and "C" showed high levels of calcite. It was found that for ceramic processing conditions adopted in this paper, the properly mixed clay deposits of "A" and "B" are suitable for use in the processing industry ceramic tiles, particularly for obtaining of the classification of the absorption group "BIII".

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          Most cited references 28

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          Cerâmica Ind.

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            "Ciência e tecnologia das argilas"

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              Appl. Clay Sci.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                ce
                Cerâmica
                Cerâmica
                Associação Brasileira de Cerâmica (São Paulo )
                1678-4553
                June 2014
                : 60
                : 354
                : 211-217
                Affiliations
                [1 ] Universidade Federal de Sergipe Brazil
                [2 ] Universidade Federal de Sergipe Brazil
                Article
                S0366-69132014000200008
                10.1590/S0366-69132014000200008
                410f255c-9656-44f5-aa87-78d8e83ac450
                Product
                Product Information: website
                Categories
                MATERIALS SCIENCE, CERAMICS

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