Inner ware body was manufactured using sanitary ware waste and kairome clay. The prepared body was characterized by XRD, SEM, and XRF. The plasticity of body was decreased due to increase of waste. Thus it is considered that wheel throwing is available up to CS-6 composition. The inner ware body, containing the 60wt% sanitary ware waste, showed the linear firing shrinkage of 12.2%, apparent porosity of 19.6%, 3-point bending strength value of 21.5 N/mm2, after sintering at 1150oC for 1 hr. As the content of waste was increased from 40wt% to 60wt% in the composition, bending strength was increased with increasing the amount of mullite phase. According to the microstructure, glass phase was observed with the body surface, which can explain the increased glass phase of the composition containing high content of waste.

• 류선영(완송도예원) | Sun young Ryu Corresponding author