This work presents a study of the physicist-mechanical properties of ceramic masses with grog incorporated, for a future use in the ceramic bricks production. First it was made the chemical and mineralógica characterization, the grain sized analysis and the determination of the limits of Atterberg of the clay and grog. After that, bodies of test extruded had been produced, contend pure clay and three compositions of mixture, in the ratios of 5, 10, 15 and 20% in mass of grog. The firing was carried in a muffle furnace with temperatures of the 850, 950 and 1050 ºC. The physicist-mechanical properties evaluated were: water absorption, drying linear shrinkage, firing linear shrinkage and flexural rupture strength. As main results, we concluded that: a) the incorporation of grog caused increase the taxes of absorption of water and reduction of the retraction in the drying and in burning and b) for the temperature of 1050 ºC, the produced bodies of test with 10% of grog had presented better resulted for the flexural rupture strength.
grog; red ceramic; ceramic brick
