Comparison of Test Methods on Performance of Absorptive Materials

흡음재 성능 시험방법 비교

  • 강대준 (국립환경연구원 소음진동과) ;
  • 이우석 (국립환경연구원 소음진동과) ;
  • 이재원 (국립환경연구원 소음진동과) ;
  • 홍준기 (국립환경연구원 소음진동과) ;
  • 조윤희 (국립환경연구원 소음진동과)
  • Published : 2005.05.01

Abstract

The absorption materials have been used to enhance the performance of a noise barrier and improve the room acoustics. In this study, 6 products of absorptive materials generally used in Korea were chosen, and their absorption performance were tested in various conditions, that is, it was measured while changing thickness, density and air gap in their back, and measured with or without facing on their face. Finally, the absorption coefficients were compared by reverberation and impedance tube method.

Keywords