Incorporação de CuSO4 residual em argamassa, como método de disposição final Incorporation of residual cuso4 into cement as a final disposal method

Incorporação de CuSO4 residual em argamassa, como método de disposição final Incorporation of residual cuso4 into cement as a final disposal method

<abstract language="eng">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 me...

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Bibliographic Details
Main Authors: Matheus Paes Paschoalino, Antonio Alberto da Silva Alfaya, Maria Josefa Santos Yabe, Sônia Maria Nobre Gimenez
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2006-07-01
Series:Química Nova
Subjects:
residues
cement
final disposal
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000400014
Description
Summary:<abstract language="eng">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.
ISSN:0100-4042
1678-7064

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