Utilização de argamassa de reboco com adição de resíduo de borra de tinta em substituição parcial do cimento

Abstract

Due to the great demand for housing, a growing search for quality, speed and mainly cost reduction in the works. With this, the reuse of waste that is generated in constructions, has been gaining space in the market, as it contributes to sustainability, avoiding the incorrect disposal of this waste, and often with this recycling it provides a reduction in the costs of the work. For this reason, the present work analyzes the use of internal and external plastering mortar, with the addition of paint sludge residue in partial replacement of cement. The method used was that of descriptive research through tests of tensile adhesion strength, water absorption and compressive strength, carried out in the laboratory, using cement plates and cylindrical specimens, half with 10% addition of residue and the other half with 30% addition of residue, in total there are 2 (two) cement plates and 30 (thirty) cylindrical specimens. That way you can get the results. With the results obtained from the tests carried out, it was analyzed that in the water absorption test, both in the 10% sample and in the 30% sample of paint sludge, it was possible to obtain satisfactory results, according to the location. application, following the regulations in force. In the compressive strength test, satisfactory values were obtained, although plaster mortars are not intended to resist compression. In the tensile bond strength test, the values obtained for the sample with 10% addition were satisfactory in all cases, as they were within the standards, however the sample with 30% addition of residue was approved only for application of internal plaster, however, for application in external plaster, this sample was disapproved, as it did not meet the values established by the current standard. Finally, it was noticed that the use of paint sludge in partial replacement of cement in plastering mortars, depending on the amount added and the application environment, provides a mortar with a lower cost compared to conventional mortars and in relation to mortar. with residue in partial replacement of the fine sand, where it presents satisfactory resistant characteristics, according to the current norms.