ACOUSTICAL PERFORMANCE OF POROUS ABSORBER MADE FROM RECYCLED RUBBER AND POLYURETHANE RESIN

Authors

  • RUBéN MADERUELO-SANZ INSTITUTO TECNOLóGICO DE ROCAS ORNAMENTALES Y MATERIALES DE CONSTRUCCIóN
  • MANUEL MARTíN-CASTIZO INSTITUTO TECNOLóGICO DE ROCAS ORNAMENTALES Y MATERIALES DE CONSTRUCCIóN
  • JUAN MIGUEL BARRIGON-MORILLAS UNIVERSIDAD EXTREMADURA
  • VALENTíN GóMEZ-ESCOBAR UNIVERSIDAD EXTREMADURA
  • GUILLERMO REY-GOZALO UNIVERSIDAD EXTREMADURA

Keywords:

SOUND ABSORBER, RECYCLED RUBBER, ACOUSTICAL PROPERTIES, IMPEDANCE TUBE, IMPEDANCE MEASUREMENT

Abstract

THIS PAPER REPORTS AN INVESTIGATION OF A NEW KIND OF MATERIAL AND ITS ACOUSTICAL PERFORMANCE. THE MAIN COMPONENT OF THIS POROUS ABSORBER IS THE GROUND TYRE RUBBER (GTR) WITH DIFFERENT PARTICLE SIZES, FROM THE SHREDDING OF TYRES OF HEAVY VEHICLES, MIXED WITH DIFFERENT PROPORTION OF POLYURETHANE RESIN. THIS IS AN INDUSTRIAL WASTE FROM MECHANICALLY FRAGMENTED TYRES OBTAINED THROUGH RECYCLING ACTIVITY. THE POTENTIAL OF RECYCLED MATERIALS MADE FROM RUBBER AS POROUS SOUND ABSORBER WAS ASSESSED ACCORDING TO ISO 10534–2: 1998. THE DATA OBTAINED SHOW CLEARLY THAT THIS POROUS ABSORBERS SHOW A HIGH SOUND ABSORPTION PERFORMANCE WITH LOW THICKNESSES. THE PERFORMANCE OF THESE MATERIALS WAS COMPARED TO SOME OF THE CURRENT MODELS FOR THE PREDICTION OF THEIR ABSORPTIVE PROPERTIES. THE USE OF THIS MODEL CONSTITUTES A GOOD TOOL IN ORDER TO DESIGN A NEW SOUND ABSORBER TO SOLVE TWO ENVIRONMENTAL PROBLEMS, NOISE AND ENVIRONMENTAL POLLUTION.

Author Biographies

JUAN MIGUEL BARRIGON-MORILLAS, UNIVERSIDAD EXTREMADURA

DPTO DE FÍSICA APLICADA. E POLITÉCNICA.

VALENTíN GóMEZ-ESCOBAR, UNIVERSIDAD EXTREMADURA

DPTO DE FÍSICA APLICADA. E POLITÉCNICA.

GUILLERMO REY-GOZALO, UNIVERSIDAD EXTREMADURA

DPTO DE FÍSICA APLICADA. E POLITÉCNICA.

Published

2013-02-05

Issue

Section

Articles