SOUND ABSORBING MATERIALS FROM RECYCLED RUBBER PRODUCTS

Authors

  • Jadwiga Turkiewicz AGH University of Science and Technology
  • Jan Sikora AGH University of Science and Technology

DOI:

https://doi.org/10.7494/mech.2013.32.3.117

Keywords:

sound absorption coefficient, sound absorbing materials, noise control

Abstract

This paper concerns the results of comparative research into the acoustical properties of rubber granulates derived from the recycling of conveyor belts production waste. In the process of recycling it is possible to obtain pure granulated rubber and forms contaminated with cotton fibres with a predominance of rubber grains or of cotton fabric. Rubber granulate in the contaminated form is characterized by sound-absorbing properties similar to those of the average-quality mineral wool and other fibrous materials. It can be used as the core of sound-absorbing panels in anti-noise protections. The research results can be used both in the design of acoustical protection as well as in the course of the recycling process of other waste products for obtaining materials with sound absorbing properties.

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References

PN-EN ISO 10534-1:2004, Akustyka określenie współczynnika pochłaniania dźwięku i impedancji akustycznej w rurach impedancyjnych. Część 1: Metoda wykorzystująca współczynnik fal stojących.

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Sikora J., Turkiewicz J. 2010, Sound absorption characteristics for granular materials. Izolacje, No. 9, pp. 26-30.

Sikora J.,Turkiewicz J. 2010, Sound absorption coefficients of granular materials. Mechanics and Control, vol. 29, No. 3, pp. 149–157.

Sikora J., Turkiewicz J. 2011, Granular materials in laminar partitions of noise protection systems. Technical Journal – Mechanics, No.15, pp. 79–92.

Sikora J., Turkiewicz J. 2012, Sound absorbing properties and application of rubber granulates. Izolacje, No. 1, pp. 54–58.

Swift M.J., Bris P., Horoshenkov K.V. 1999, Acoustic absorption in recycled rubber granulate. Applied Acoustics, vol. 57, pp. 203–212.

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Issue

Vol. 32 No. 3 (2013)

Section

Articles

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