Evaluation of acoustical parameters of a Brazilian popular housing model

Abstract

This article presents the results obtained from the evaluation of the acoustical insulation parameters determined in situ in a popular residence projected to offer an option to combat the housing deficit of the low income Brazilian population. This evaluation has been carried out according to the statements of the standards ISO 140-4 and 140-5, which state about this type of measurement. The results have shown that the surveyed house presents a satisfactory performance if compared to the standard of the Brazilian civil construction, but it is not adequate if compared to the demands of the international standards.

Statybinių medžiagų ir konstrukcijų akustinių savybių tyrimas ir panaudojimas triukšmui mažinti patalpose

“…Plonos plokštės turi didelį kritinį dažnį ir didelį standį esant įlinkiui, o oro tarpo pripildomoji medžiaga yra standi esant šlyties poslinkiams. Tokios konstrukcijos kritinis dažnis, kai oro tarpo pripildomosios medžiagos sugerties koeficientas α < 0,8, randamas pagal formulę (Ferreira 2004;Matsumoto et al 2006…”