The quality of the tile pieces after firing at 1190 ºC was determined on the basis of linear shrinkage, apparent density, water absorption, and flexural strength (Figs 3 to 6). The pieces with 0-wt.% of sugarcane bagasse ash waste addition were considered as the reference pieces. The linear shrinkage of the pieces, as shown in Fig. 3, presented only slight differences with sugarcane bagasse ash waste addition. All pieces presented acceptable values of linear shrinkage (9.21 – 10.81 %) for industrial production of ceramic floor tile. The high values of shrinkage observed at 1190 ºC are fundamentally related to the formation of large amount of glassy phase, with predominance of viscous flow sintering on the material densification. The apparent density of the fired tile pieces is shown in Fig. 4. It may be observed that the sugarcane bagasse ash waste tends to increase the apparent density. This behavior can be attributed to the chemical and mineralogical compositions of the waste, which tends to aid the sintering of the pieces. In fact, when compared with quartz, the sugarcane bagasse ash waste contains flux materials (K2O, CaO, and Fe2O3), which cause higher densification of the tile pieces. The flexural strength of the tile pieces fired at 1190 ºC presented only slight increases with sugarcane bagasse ash waste addition (Fig. 5). This behavior is in accordance with the results of linear shrinkage (Fig. 3) and apparent density (Fig. 4). The water absorption values of the tile pieces are presented in Fig. 6. The effect of the waste addition was to increase the water absorption of the pieces. This increase in water absorption with increase in waste amount is due to the increase of open pore volume in the pieces. Since the sugarcane bagasse ash waste contains high amount of organic matter, the sintering of the tile pieces at 1190 ºC causes volatization of organic matter and results in increase in open pore volume.