The usage of solid wastes composing bituminous mixtures is a growing practice and a worldwide trend. Among the several industrial solids studied there is the red mud, a residue generated during the processing of bauxite into aluminum. Like many other materials, the red mud possesses properties capable to promote water contamination when applied on road pavements. However, although there are researches that analyse the leaching of residues from bituminous mixtures, there are no recognized standards that allow a careful and coherent analysis to verify the feasibility of their usage. Thus, this study aims to use the damage induced by moisture test as methodology of environmental analysis for bituminous mixtures composed by two different fillers: red mud and stone dust. For this, four types of mixtures with 7% of filler were manufactured, however, the amount of red mud and stone dust were varied. The water from the test was analysed with a photocolorimeter to verify the residue leaching. The water analysed showed a minimum quantity of red mud leached.