RESUMOO etileno acetato de vinila (EVA) é um polímero utilizado na confecção de materiais escolares, esportivos e no setor calçadista. Este gera resíduos, logo é necessário a sua reutilização. Visando isso, o trabalho tem como objetivo estudar placas produzidas a partir de EVA/cimento como isolante acústico e desta forma dar um destino a este material. Neste sentido a melhor mistura EVA/cimento foi estudada. Com a placa produzida foram investigadas suas características, para isto foram realizados os ensaios de absorção de água, acústica, e inlamabilidade e análise microscópica. Os resultados mostraram que a placa apresenta uma redução acústica mais eiciente nas frequências entre 800 e 1000Hz quando comparada a uma parede de concreto. Desta forma o material mostra-se viável para o isolamento acústico possibilitando assim um novo destino produtivo para o resíduo de EVA. ABSTRACTEthylene vinyl acetate (EVA) is a polymer used in the manufacture of school supplies, sports and footwear. The production process generates substantial amounts of residues, which should be reused. The aim of this study was to examine if plates produced from a mixture of EVA and cement can be used for acoustic insulation, thus giving a proper destination to the residues. For that purpose, the best mixture of EVA and cement was examined. The characteristics of the manufactured plates were analyzed, and water absorption, acoustic, lammability, and microscopic tests were carried out. The results showed that the acoustic reduction of the plates was more eicient in the frequencies between 800 and 1000Hz as compared to concrete walls. This inding allows to conclude that EVA plates can be used for acoustic insulation, thus giving a proper destination to the residues.
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