Incorporação de CuSO4 residual em argamassa, como método de disposição final Incorporation of residual cuso4 into cement as a final disposal method
| Autor: | Matheus Paes Paschoalino, Antonio Alberto da Silva Alfaya, Maria Josefa Santos Yabe, Sônia Maria Nobre Gimenez |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 29, Iss 4, Pp 699-703 (2006) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| DOI: | 10.1590/S0100-40422006000400014 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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