Acoustic properties of loose and consolidated granulates

Authors

  • Kirill V. Horoshenkov Sch. of Eng., Design and Technology, University of Bradford, Bradford, BD7 1DP, United Kingdom
  • Siow N. Ting Sch. of Eng., Design and Technology, University of Bradford, Bradford, BD7 1DP, United Kingdom
  • Jan Rushforth Sch. of Eng., Design and Technology, University of Bradford, Bradford, BD7 1DP, United Kingdom
  • Mark J. Swift Armacell UK Limited, Mars St, Oldham, OL9 6LY, United Kingdom

Keywords:

Absorption, Acoustic impedance, Acoustic properties, Composite structures, Foams, Glass, Granular materials, Granulation, Polyvinyl chlorides, Pore size, Porous materials, Vibration control, Absorption coefficients, Acoustic absorbers, Fiberglass, Wavenumbers

Abstract

The acoustic performance of some porous materials made from loose and consolidated granulates was investigated. Loose mixes of granular and fibrous carpet tile waste were used for the this study. It was shown that a thin layer of recycled material can yield relatively high values of absorption coefficient. The results show that for the selected layer thickness the acoustic performance of the recycled carpet granulates is comparable or superior to that observed in the case of fiberglass in the low and medium frequency range.

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Published

2004-09-01

How to Cite

1.
Horoshenkov KV, Ting SN, Rushforth J, Swift MJ. Acoustic properties of loose and consolidated granulates. Canadian Acoustics [Internet]. 2004 Sep. 1 [cited 2021 Oct. 20];32(3):22-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1608

Issue

Vol. 32 No. 3 (2004)

Section

Proceedings of the Acoustics Week in Canada

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