Análise acústica comparativa entre paredes de gesso acartonado, alvenaria convencional e estrutural
In the process of market adaptation, a constructive technique and material that has been gaining more and more market in the construction sector is the gypsum board. An important property addressed in this study concerns the acoustic performance of internal seals, which allows good partitioning capa...
| Autor principal: | Swarowsky, Rafael |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2021
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/24670 |
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| Resumo: |
In the process of market adaptation, a constructive technique and material that has been gaining more and more market in the construction sector is the gypsum board. An important property addressed in this study concerns the acoustic performance of internal seals, which allows good partitioning capacity and still provides acoustic insulation. The objective was to evaluate the effectiveness of the construction technique of vertical sealing of interior environments through gypsum board (with acoustic insulation) in relation to ceramic and structural block masonry systems, already consolidated in the region. The approach was performed by measuring the transfer of noise between walls when placed under the same circumstances. The sound pressure levels collected were the result of the arithmetic mean of the results observed in at least five different positions (with a minimum distance of 50 centimeters) for the same internal sealing. Note that in all analyzed frequencies, acoustic gypsum without acoustic treatment presented higher values of received noise. For the lower frequency of 1kHz the material that presented better as an insulator was the structural masonry followed by the ceramic block, glass wool and rock wool. At the frequencies of 5 and 8.5 kHz glass wool was more effective followed by rock wool, structural masonry and ceramic block. Sealed gypsum seals without the presence of any insulation presented the lowest noise absorption performance at a rate of 20.81% for 1kHz, 33.29% for 5kHz and 30.18% for 8.5kHz. With the use of glass wool as an insulator these rates increase by up to almost 30% and for glass wool by up to 23%. Structural masonry presented the best performance (53.78%) at the frequency of 1 kHz but is surpassed by glass wool and rock wool at higher frequencies. The ceramic block masonry did not perform as well as the structural one possibly due to the lower density of its building materials. The construction technique in gypsum plasterboard has had a growth and development in the works of the region mainly in relation to the internal subdivision of the buildings. It is noted, however, that few works that perform this technique with coatings with insulating properties. |
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