Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory

With the implementation, of the Brazilian Standard of Performance of residential buildings, minimum performance values as the sound insulation between rooms began to be required. In the search to meet these requirements, many builders have invested in obtaining results of sound reduction index of th...

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Bibliografische gegevens
Hoofdauteurs:	Silva Júnior, Otávio Joaquim da, Rêgo Silva, José Jéferson do, Pinheiro, Marco Antonio Silva
Formaat:	Online
Taal:	por
Gepubliceerd in:	Universidade Estadual de Campinas 2015
Online toegang:	https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8634534
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id	oai:ojs.periodicos.sbu.unicamp.br:article-8634534
record_format	ojs
institution	Universidade Estadual de Campinas
collection	OJS
language	por
format	Online
author	Silva Júnior, Otávio Joaquim da Rêgo Silva, José Jéferson do Pinheiro, Marco Antonio Silva
spellingShingle	Silva Júnior, Otávio Joaquim da Rêgo Silva, José Jéferson do Pinheiro, Marco Antonio Silva Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory
author_facet	Silva Júnior, Otávio Joaquim da Rêgo Silva, José Jéferson do Pinheiro, Marco Antonio Silva
author_sort	Silva Júnior, Otávio Joaquim da
title	Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory
title_short	Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory
title_full	Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory
title_fullStr	Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory
title_full_unstemmed	Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory
title_sort	acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory
description	With the implementation, of the Brazilian Standard of Performance of residential buildings, minimum performance values as the sound insulation between rooms began to be required. In the search to meet these requirements, many builders have invested in obtaining results of sound reduction index of the partitions masonry ceramic bricks or concrete. However, building elements such as walls in gypsum blocks have not been the subject of such investigations with so much encouraging. In northeastern Brazil, where there is a large concentration of natural deposits of gypsum, many buildings are made of gypsum block walls, due to the climatic conditions of the region and low cost of the material. Considering the lack of information of acoustic properties of the walls in gypsum blocks, this paper presents values of the sound reduction index prepared for two walls constructed of massive plaster blocks 10 cm thick, both tested in the laboratory according to established methods on international standards ISO 10140. The results obtained of the walls evaluated in the field attend minimum requirements of the Brazilian standard of performance (40 dB), only as a wall between independent dwelling units, in situations where there is no dormitory room. In the laboratory, the same wall meets the minimum requirements if it is built as a blind wall of rooms and kitchens from a housing unit and common areas of eventual transit such as hallways and staircases of the floor (39 dB). The field results are superior to those obtained by the laboratory test, contrary to the standard of performance expected. This reinforces the importance of conducting the field test.
publisher	Universidade Estadual de Campinas
publishDate	2015
url	https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8634534
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spelling	oai:ojs.periodicos.sbu.unicamp.br:article-86345342019-06-17T15:21:11Z Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory Desempenho acústico de divisórias verticais em blocos de gesso: uma avaliação a partir de medições de campo e em laboratório Silva Júnior, Otávio Joaquim da Rêgo Silva, José Jéferson do Pinheiro, Marco Antonio Silva Acoustic Performance. Gypsum block. Sound transmission loss. Desempenho Acústico. Bloco de Gesso. Perda de Transmissão Sonora. With the implementation, of the Brazilian Standard of Performance of residential buildings, minimum performance values as the sound insulation between rooms began to be required. In the search to meet these requirements, many builders have invested in obtaining results of sound reduction index of the partitions masonry ceramic bricks or concrete. However, building elements such as walls in gypsum blocks have not been the subject of such investigations with so much encouraging. In northeastern Brazil, where there is a large concentration of natural deposits of gypsum, many buildings are made of gypsum block walls, due to the climatic conditions of the region and low cost of the material. Considering the lack of information of acoustic properties of the walls in gypsum blocks, this paper presents values of the sound reduction index prepared for two walls constructed of massive plaster blocks 10 cm thick, both tested in the laboratory according to established methods on international standards ISO 10140. The results obtained of the walls evaluated in the field attend minimum requirements of the Brazilian standard of performance (40 dB), only as a wall between independent dwelling units, in situations where there is no dormitory room. In the laboratory, the same wall meets the minimum requirements if it is built as a blind wall of rooms and kitchens from a housing unit and common areas of eventual transit such as hallways and staircases of the floor (39 dB). The field results are superior to those obtained by the laboratory test, contrary to the standard of performance expected. This reinforces the importance of conducting the field test. Com a entrada em vigor da norma de desempenho das edificações habitacionais, valores mínimos de desempenho quanto ao isolamento acústico entre cômodos passaram a ser exigidos. Na busca ao atendimento dessas exigências, muitos construtores têm investido na obtenção de resultados do índice de redução sonora de divisórias em alvenarias de blocos cerâmicos ou concreto. No entanto, elementos construtivos como, por exemplo, paredes em blocos de gesso não têm sido alvo destas investigações com tanto fomento. Na região nordeste do Brasil, onde há uma grande concentração de jazidas naturais de gipsita, muitas construções são feitas em paredes de blocos de gesso, em razão do baixo custo e de condições climáticas da região. Diante da escassez de informações de propriedades acústicas das paredes em blocos de gesso, neste trabalho são apresentados valores do índice de redução sonora ponderado para duas paredes construídas em blocos de gesso maciço com 100mm de espessura, ambas ensaiadas em laboratório conforme métodos preconizados nas normas internacionais ISO 10140. Dos resultados obtidos, as paredes avaliadas em campo atendem a requisitos mínimos da norma brasileira de desempenho (40 dB) apenas nas paredes entre unidades habitacionais autônomas, nas situações onde não há ambiente de dormitório. Em laboratório, a mesma parede atenderá aos requisitos mínimos se for construída como parede cega de salas e cozinhas entre uma unidade habitacional e áreas comuns de trânsito eventual, como corredores e escadaria dos pavimentos (39 db). Os resultados em campo são superiores aos obtidos por ensaio em laboratório, indo de encontro ao que a norma de desempenho prevê. Isso reforça a importância da realização dos ensaios em campo. Universidade Estadual de Campinas 2015-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Field study. Pesquisa Experimental application/pdf https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8634534 10.20396/parc.v5i2.8634534 PARC Pesquisa em Arquitetura e Construção; Vol. 5 No. 2 (2014): Acoustic quality of the built environment; 15-21 PARC Pesquisa em Arquitetura e Construção; Vol. 5 Núm. 2 (2014): Qualidade acústica do ambiente construído; 15-21 PARC Pesquisa em Arquitetura e Construção; v. 5 n. 2 (2014): Qualidade acústica do ambiente construído; 15-21 1980-6809 por https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8634534/2455 Copyright (c) 2018 PARC Pesquisa em Arquitetura e Construção

Acoustic performance of vertical partition in gypsum block: an evaluation in field and laboratory

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