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Article

Virgin Natural Cork Characterization as a Sustainable Material for Use in Acoustic Solutions

1
Institute for Sustainable Regional Development (INTERRA), Lambda, Departamento de Física Aplicada, Universidad de Extremadura, 10003 Cáceres, Spain
2
Instituto Tecnológico de Rocas Ornamentales y Materiales de Construcción (INTROMAC), Campus Universidad de Extremadura, 10071 Cáceres, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Roberto Benocci
Sustainability 2021, 13(9), 4976; https://doi.org/10.3390/su13094976
Received: 26 March 2021 / Revised: 21 April 2021 / Accepted: 26 April 2021 / Published: 29 April 2021
(This article belongs to the Special Issue Noise Pollution Management)
A characterization of the sound absorption of a sustainable material with scarce current use such as natural virgin cork is presented in this paper in order to explore further possible applications in the design of acoustic solutions. Different samples of virgin cork not bonded and various decorative panel formats were tested under random sound incidence conditions in a standardized reverberation chamber. The samples in which the outer bark of the cork was facing upwards showed a better behavior as an acoustic absorber, with sound absorption coefficient values generally greater than 0.6 for frequency bands between 1 and 5 kHz. The results obtained were compared with samples of some recycled materials available in the scientific literature, such as sheep wool and PET. View Full-Text
Keywords: sound absorption; reverberation chamber; ISO 354; green circular economy; building material sound absorption; reverberation chamber; ISO 354; green circular economy; building material
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MDPI and ACS Style

Barrigón Morillas, J.M.; Montes González, D.; Vílchez-Gómez, R.; Gómez Escobar, V.; Maderuelo-Sanz, R.; Rey Gozalo, G.; Atanasio Moraga, P. Virgin Natural Cork Characterization as a Sustainable Material for Use in Acoustic Solutions. Sustainability 2021, 13, 4976. https://doi.org/10.3390/su13094976

AMA Style

Barrigón Morillas JM, Montes González D, Vílchez-Gómez R, Gómez Escobar V, Maderuelo-Sanz R, Rey Gozalo G, Atanasio Moraga P. Virgin Natural Cork Characterization as a Sustainable Material for Use in Acoustic Solutions. Sustainability. 2021; 13(9):4976. https://doi.org/10.3390/su13094976

Chicago/Turabian Style

Barrigón Morillas, Juan M., David Montes González, Rosendo Vílchez-Gómez, Valentín Gómez Escobar, Rubén Maderuelo-Sanz, Guillermo Rey Gozalo, and Pedro Atanasio Moraga. 2021. "Virgin Natural Cork Characterization as a Sustainable Material for Use in Acoustic Solutions" Sustainability 13, no. 9: 4976. https://doi.org/10.3390/su13094976

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