Method of making single wood concrete layer sound absorption pan

Details Method of making single wood concrete layer sound absorption pan Method of making single wood concrete layer sound absorption pan

1992-08-26

1994-06-28

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

Disparate treatment of article subsequent to working,...

Effecting temperature change

264 71, 264333, 264336, 264345, 264DIG43, B28B 108, B28B 300

Patent

active

053244699

ABSTRACT:
A single wood concrete layer, sound absorption panel is formed as a single wood concrete layer, cast panel body of kaolin mineralized organic fiber chips encased in Portland cement with steel reinforcement. The panels have a noise reduction coefficient of at least about 0.85 for a panel thickness of about 10 cm and a panel density of 86.5 kg/m.sup.2.

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