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Parametric Influence on the Sound Absorption Coefficient of Porous Asphalt

[+] Author Affiliations
Punnamee Sachakamol, Liming Dai

University of Regina, Regina, SK, Canada

Paper No. IMECE2009-11477, pp. 19-26; 8 pages
doi:10.1115/IMECE2009-11477
From:
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 15: Sound, Vibration and Design
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4388-8 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME

abstract

This research intends to develop a method for predicting the sound absorption coefficient of various porous highway pavement materials. Since many of the existing prediction models for acoustic properties and traffic noise still have limitations and problems with accuracy, sound absorption coefficients are measured with the impedance tube method to verify numerical values obtained from the model. Results obtained from the experiment and numerical simulations are compared and presented to reveal the effect and influence of the control parameters.

Copyright © 2009 by ASME

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