Effect of Dynamic Stiffness and Mass of Resilient Sound Mat Material on the Impact Sound Performance of Floor-Ceiling Assemblies

This paper describes how it is becoming more common in buildings in North America to require construction of floor-ceiling assemblies that address impact and airborne sound. Resilient sound mats composed of either rubber or plastic materials are commonly used in these assemblies to improve their sound reduction capability. Rubber mats are typically heavy, and can be manufactured in a wide range of dynamic stiffness. In this case rubber mats were used that varied between 6 and 8 kg/m2 and of dynamic stiffness of 16 to 52 MN/m3. Plastic weave mats are typically lighter, 0.8 kg/m2 and have a dynamic stiffness of 28 MN/m3. On top of these mats is poured a screed material, typically composed of lightweight concrete. Finished flooring is then placed on top to complete a floor assembly. All of these materials are non-proprietary and generally available. This combination of products may be referred to collectively as floor toppings. The effectiveness of the resilient materials were measured on both massive (concrete floor) and less massive (joist floor with lightweight sub floor) structures for performance comparison.

• Corporate Authors:

  Institute of Noise Control Engineering

  Iowa State University, 210 Marston Hall
  Ames, IA  United States  50011-2153

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Downey, P
  • Bachman, G
• Conference:
  • Noise-Con 04. The 2004 National Conference on Noise Control Engineering
  • Location: Baltimore Maryland, United States
  • Date: 2004-7-12 to 2004-7-14
• Publication Date: 2004

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References;
• Pagination: pp 51-54
• Monograph Title: Noise-Con 04. The 2004 National Conference on Noise Control Engineering

Subject/Index Terms

• TRT Terms: Environmental impacts; Interference; Noise; Noise barriers; Noise sources; Sound absorption; Sound insulating materials; Sound transmission; Traffic noise
• Uncontrolled Terms: Concrete floors
• Subject Areas: Energy; Environment; Highways; I15: Environment;

Filing Info

• Accession Number: 01054153
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jul 24 2007 10:56AM