Ceramic from aqueous suspensions with 46% Al₂O₃, 51% ZrSiO₄ and 3%TiO₂ were obtained by pouring in plaster moulds. Alumina-zircon aqueous suspensions were prepared with 0.30 % additives, such as: Arabic gum (A.G.), sodium carboxymethylcelullose (Na-CMC) and polyvinyl alcohol (PVA) through wet grinding. Grinding times were varied from 2.5 up to 26 hours. Properties of aqueous suspension like: pH, viscosity, mean grain size were determined. Tests of pouring were also performed. Shaped ceramic samples were sintered at 1150 ⁰C for 2 hours, in an electric furnace, in air. Apparent density, apparent porosity, absorption and microstructure of the sintered samples, were determined. By SEM technique was evaluated the  microstructure. It was found that all charasteristics of prepared aqueous suspensions and ceramic samples varied as a function of the grinding time. The purpose of this paper is to present some characteristics of these alumina-zircon aqueous suspensions and of sintered shaped castings depending on wet milling time of main raw materials and additive mixture.