Influence of the conservation state of the facade elements as a variable of prediction of acoustic insulation to airborne sound

2008 ◽  
Vol 123 (5) ◽  
pp. 3614-3614
Author(s):  
Leonardo Meza
Keyword(s):  
Airborne Sound ◽  
Acoustic Insulation

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

Buildings ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 60 ◽  
Author(s):  
Romina del Rey ◽  
Jesús Alba ◽  
Juan Rodríguez ◽  
Laura Bertó
Keyword(s):  
Composite Fiber ◽  
Sound Insulation ◽  
Green Composite ◽  
Financial Investment ◽  
Sustainable Solutions ◽  
Airborne Sound ◽  
Acoustic Insulation ◽  
New Material ◽  
Research Stage

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.

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