Sound Absorption Properties Evaluation and Analysis of Recycled Tyre Textile Fibre Waste

Abstract

Modern world is exposed to various environmental concerns which are closely related to human health condition. Since the automatization, world became vulnerable to the noise and the waste amounts generated. World Health Organization report states, due to noise, Western Europe each year loses approximately 1 million of healthy life years. However, noise is not the only concern. Tyres, since they were banned from the landfills, became enormous problem in a modern society. Approximately 2.6 million tonnes of tyres are generated each year in Europe, out of which 320 000 tonnes of Recycled Tyre Textile Fibre (RTTF) waste. Practically, rubber granules and metals extracted from tyre can be reused, however reusing RTTF is a challenge. The main focus is on the possibility of reuse of RTTF in buildings for acoustical comfort improvement. The determination of sound absorption is implemented by experimental research, based on ISO 10534 standard, involving five types of sound absorbing materials. It was concluded that RTTF has a great potential in use for sound absorption structures and can be an alternative substitute to non-renewable and non-recyclable materials.

The noise absorption prediction of a combined and independent absorber under different conditions and at different frequencies, using the new Engineering Noise Control Software (ENC)

“…In a study conducted by Ružickij et al. [ 23 ] To evaluate the sound absorption properties of recycled tire textile fiber waste, increasing the thickness of rock wool adsorbent at low frequencies increased the absorption coefficient, which was in line with the results of the present study.…”

Recycling Functional Fillers from Waste Tires for Tailored Polystyrene Composites: Mechanical, Fire Retarding, Electromagnetic Field Shielding, and Acoustic Insulation Properties—A Short Review

“…The acoustic characterization of materials is based on their sound absorption coefficient. It is defined as the absorbed energy in the absorbent divided by incident energy [ 69 ]. The sound absorption can be calculated by the tube method according to the International Standard ISO10534 [ 70 ].…”

Sound effect of transmitting specific emotions in music performance based on the acoustic properties of conjugated materials

“…When sound waves propagate in conjugated materials, electrons in the molecular structure can interact with the energy of sound waves, resulting in resonance absorption. Resonant materials have a better energy absorption effect than ordinary materials, so conjugated materials have a wide range of applications in the field of acoustics ( Ruickij et al, 2020 ). The calculation formula for the sound absorption coefficient is: …”