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The contamination effects of copper chloride, on the shear strength of soils to be used as liners, were experimentally tested in laboratory. The copper chloride was chosen as the contaminant agent because it is the most common in found in industrial sanitary landfills. The results of percolation and conventional triaxial tests for soils from Serra Geral Formation (clayed soils), Botucatu Formation (sandy soils) and a mix in a convenient proportion with both soils are presented. The hydraulic condutivity and strength of the mixed soil indicated that it is more suitable to be used as liners than the original soils. From the comparison of triaxial test results, the effects of contamination were more significant in the soils from the Serra Geral Formation as a consequence of the electrical double layer. For the three soils, the effects of contamination were more noticeable for smaller confining pressures.

Influência da contaminação por cloreto de cobre na resistência ao cisalhamento de solos utilizados em liners