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1. (WO2018076040) AN ACOUSTICALLY POROUS MATERIAL

Pub. No.:    WO/2018/076040    International Application No.:    PCT/AU2017/000223
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Oct 19 01:59:59 CEST 2017
IPC: E01F 8/00
E04B 1/84
Applicants: PYROTEK PTY. LIMITED
Inventors: TSITOS, George
Title: AN ACOUSTICALLY POROUS MATERIAL
Abstract:
An acoustic item (10) to absorb sound that includes a body (outer shell) that surrounds or at least partly covers a cavity (12). The body (11) including an acoustically porous layer (15), the layer including a granular material and a bonding agent securing the granular material together. The cavity (12) may be a void or may include sound absorbing material such as mineral wool fibre, fibreglass, foam glass, clay beads, a synthetic fibre such as polyester or polyurethane or slag.