Study of clay used in the production of red ceramic pottery on semi-arid Cearense, Brazil

Red ceramics are part of one the sectors ceramic materials that make up formation civil construction complex. In Cariri region and in rest Brazil, this segment uses clay as main source raw material, which favors appearance micro, small medium enterprises produce most products manufactured by red sector. The objective work was mineralogical technological characterization a sample from potteries region, intended for manufacture to be used such tiles bricks. For that, techniques X-ray fluorescence diffraction were used, addition determining physical-mechanical properties specimens 4 ton-force uniaxial pressing followed firing at 800, 900 1000ºC. results showed is composed quartz, kaolinite, smectite muscovite it has granulometry mostly fine fractions; after shows reddish color Atterberg limits within range indicated use on ceramics. under study suitable burned 800°C do not meet values literature. studied proved application perforated