Acoustical barrier

Details Acoustical barrier Acoustical barrier

1979-11-13

1982-04-20

Miller, Jr., George H.

Acoustics

Sound-modifying means

Sound absorbing fence or screen

181294, E04B 182, E04H 1700, C04B 4300

Patent

active

043254578

ABSTRACT:
The invention is a new acoustic panel and sound barrier constructed therefrom in which the panel is composed of a layer of fine aggregate concrete and a layer of chemically mineralized and neutralized fibres blended with portland cement. The panel may have a tongue and groove to form airtight joints. The barrier is effective, fire proof, weather resistant, corrosion resistant and not adversely affected by chemical herbicides.

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patent: 3919444 (1975-11-01), Shayman
patent: 4100710 (1978-07-01), Kowallik
patent: 4133928 (1979-01-01), Riley et al.

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