Paper presents the results of investigation on wear of alumina and alumina-basing particulate composites by hard abrasive particles in different environments. The results of two tests (The Dry Sand Test and the Miller Test in pulp) were compared. As an abrasive medium coarse silicon carbide grains were used in both cases. The alumina microstructure was modified by different inclusions: zirconia, tungsten carbide, metallic tungsten and their mixtures. The results indicate that the optimal wear susceptibility in given work environment could be achieved by the addition of different type of additives.