Characterization of Clay Used in Structural Ceramic

E-ISSN： 1662-9752|2015|820|24-29

ISSN： 0255-5476

Source： Materials Science Forum, Vol.2015, Iss.820, 2015-07, pp. : 24-29

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Abstract

Structural ceramic quality is particularly related to the quality of the clays. Our aim is to characterize the common clay called Batinga used in the ceramic industry in Colatina - ES, which has a ceramic pole with about twenty companies. Batinga samples were tested for chemical and mineralogical composition, particle size distribution characterization, thermal behavior, optical microscopy, SEM and Atterberg limits. The specimens were shaped, dried at 110oC, burned in industrial furnace and submitted to ceramic test. The results show that the clay presents typical chemical composition of raw clay with significant amount of silica and alumina, besides adequate particle size distribution and mineralogical composition. The high plasticity shown may require high water content in the molding of ceramic roof tiles. The tests yielded results that showed that the clay meets the requirements of the Brazilian standard for structural ceramic.