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Characterization of New Sustainable Acoustic Solutions in a Reduced Sized Transmission Chamber

Centro de Tecnologías Físicas, Universitat Politècnica de València, EPS Gandia, C/Paranimf, 1, Grao de Gandia, 46730 Valencia, Spain
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Buildings 2019, 9(3), 60; https://doi.org/10.3390/buildings9030060
Received: 31 January 2019 / Revised: 25 February 2019 / Accepted: 1 March 2019 / Published: 7 March 2019
(This article belongs to the Special Issue Noise Control in Buildings)
In order to assess the airborne sound insulation of a new material or building solution, access to standardized laboratories, large and expensive facilities, and a sample area of at least 10 m2 are required. At the research and development stages of new sustainable acoustic materials for construction, it is not easy to make large sample areas available. Moreover, the financial investment in acoustic testing of materials during the research stage in standardized laboratories is excessive. In this work, the assessment of the airborne sound insulation of multi-layer partitions designed with new sustainable materials is presented. The assessed solutions are formed by green composite fiber boards as lightweight elements and a new material designed from sheep wool as absorbent material. The results of these 100% recyclable solutions are compared with lightweight element based solutions, which are commonly used for acoustic insulation. Characterization of those new sustainable solutions for building is leveraged in a reduced sized transmission chamber. The design, construction, and validation of this kind of laboratory are provided. This laboratory enables the assessment of the airborne sound insulation of a material in its research stage. View Full-Text
Keywords: sound insulation in buildings; air-borne sound transmission; innovative acoustic material; sustainable acoustics; acoustic characterization; green composites; sheep wool sound insulation in buildings; air-borne sound transmission; innovative acoustic material; sustainable acoustics; acoustic characterization; green composites; sheep wool
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del Rey, R.; Alba, J.; Rodríguez, J.C.; Bertó, L. Characterization of New Sustainable Acoustic Solutions in a Reduced Sized Transmission Chamber. Buildings 2019, 9, 60.

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