| 翻訳と辞書 |
Acoustiblok
Acoustiblok, a registered trademark of Acoustiblok Inc., is a barium free mass loaded construction membrane material which increases the sound attenuation properties of conventional wall and floor/ceiling designs. Acoustiblok material is also used as a component in noise abatement systems. It was introduced in 1999 and is manufactured in the United States.
==Physical properties==
Acoustiblok is a 1/8" thick mass loaded vinyl sound isolation material (16 or 32 ounces per square foot) that is barium free, used in architectural acoustics and other noise control applications. Acoustiblok is a dense but very flexible material, which controls sound energy by blocking airborne sound transmission, and dissipating acoustical energy by changing acoustical energy into a trace amount of heat through viscoelastic friction in response to sound waves. Sixteen ounce Acoustiblok is 0.1" (2.5 mm) thick, and weighs 1 lb/ft2 (4.9 kg/m2).
In common with all passive sound attenuation technologies, Acoustiblok material is more effective at controlling high frequency sound than low frequency sound, due to the higher energy of lower frequency sound waves. NVLAP certified laboratory tests by Riverbank Acoustical Laboratories, show that a single layer of 16 oz Acoustiblok reduces transmitted sound by 19 dB at 100 Hz, and 38 dB at 5 kHz.〔(RAL-TL03-085 )〕 This report describes testing the Acoustiblok only, and not in an actual wall; construction assemblies with Acoustiblok give much higher sound attenuation.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Acoustiblok」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|