Laminated acoustic soundproofing panel

Details Laminated acoustic soundproofing panel Laminated acoustic soundproofing panel

E - Fixed Constructions

04

B

E04B 1/86 (2006.01)

Patent

CA 2754978

A laminated acoustic building panel comprises a pair of plasterboard substrates (10,13) which are bonded together by an adhesive layer (16), the panel having a dynamic Young's modulus of 0.1 to 5 GPa and a damping loss factor of 5 - 30% (q = 0.05 - 0.3), and the ratio of the adhesive (16) to the applied surface area of the substrates (10,13) being 80 - 250 g/m2. The laminated panel is relatively soft in construction and hence sound waves caused by knocking or impact noise is surprisingly damped using considerably less adhesive (16) than known panels. The use of soft substrates (10,13) and less adhesive (16) significantly reduces the weight of the panel. Furthermore, the use of less adhesive (16) significantly reduces costs and makes production easier.

L'invention concerne un panneau d'insonorisation acoustique laminé utilisé en construction, qui comprend une paire de substrats en plaque de plâtre (10, 13) liés par une couche adhésive (16). Ce panneau a un module de Young dynamique compris entre 0,1 et 5 GPa et un facteur de perte d'amortissement compris entre 5 et 30% (? = 0,05 ? 0,3), et, enfin, un rapport entre l'adhésif (16) et la surface appliquée des substrats (10, 13) compris entre 80 et 250 g/m2. Ce panneau, de conception relativement souple, amortit de façon surprenante les ondes sonores engendrées par un bruit de choc ou d'impact alors qu'il utilise considérablement moins d'adhésif (16) que des panneaux existants. L'utilisation de substrats souples (10, 13) et nécessitant moins d'adhésif (16) réduit considérablement le poids du panneau. De plus, l'utilisation d'une quantité d'adhésif inférieure (16) réduit les coûts et facilite la production de façon significative.

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