Isolamento do ruído de impacto com resíduos de pet e pneu - análise preliminar de dados

Abstract

Population growth has created several problems in contemporary society. Among them are the increasing waste disposal and the lack of affordable housing. The aim of this work was to study the potential use of two solid waste in the manufacture of floating floors to reduce the impact noise propagation through partnerships with Furnas Centrais Elétricas and UFG. The samples were prepared with the PET bottle flake and rubber tire residues used in ciment mixtures in ratios of 1:4 and 1:5 (ciment: residue). These had different thicknesses over which a portable mortar slabs with two types of ceramic tiles were places. For the tests procedures, ISO 140-7 was consulted for measuring the standardized impact sound pressure level (L’nT) and ISO 717-2 for determining the unique value of the weighted standardized impact sound pressure level (L’nT, w). Among the results, 5 samples with PET obtained higher results than the other samples. It is concluded that samples with PET residue outperformed the samples with tire residue. However, both residues have a potential use in the application of floating floors, but need further studies for technical application.