Incorporação de CuSO4 residual em argamassa, como método de disposição final

AUTOR(ES)

Paschoalino, Matheus Paes, Alfaya, Antonio Alberto da Silva, Yabe, Maria Josefa Santos, Gimenez, Sônia Maria Nobre

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2006-07

RESUMO

Residual CuSO4 was incorporated into the mass utilized for cement preparation. To a cement mass with 1:0.5:5 of cement, lime and sand to 0.25, 0.50, 0.75 and 1.00% of residual CuSO4 were added. The sulfate was mixed separately with lime and water to induce metal precipitation. The hardened test bodies were submerged in Milli-Q water for three months. No Cu was detected in the water by Atomic Absorption Spectrometry. The best proportion for mechanical resistance and porosity is 0.50%. The cement is adequate for non-structural objects.

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