EVALUATION OF ABSORPTIVE SOUND BARRIER SAMPLES IN FREEZE/THAW ENVIRONMENTS

An experiment was conducted to determine the resistance of absorptive sound barriers to repeated cycles of freezing and thawing. Testing was performed on two absorptive sound barrier samples of porous concrete on one side of the panel and normal concrete on the other. Embedded only in the surface of the porous concrete were 1-in smooth aggregate pieces. The two concretes differed in such properties as strength, mix proportions, and density. The details of the tests and results are presented. It was found that the resistance of the porous concrete specimens to freeze/thaw conditions was poor and resulted in considerable loss of section. Such porous concrete samples were determined to be unsuitable as absorptive sound barriers in situations where they will be subjected to repeated freeze/thaw cycles.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1586080
• Corporate Authors:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Lane, S N
• Publication Date: 1989-9

Media Info

• Features: References;
• Pagination: p. 46-48
• Serial:
  • Public Roads
  • Volume: 53
  • Issue Number: 2
  • Publisher: Federal Highway Administration
  • ISSN: 0033-3735
  • Serial URL: https://www.fhwa.dot.gov/publications/publicroads/
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Concrete; Freeze thaw durability; Noise barriers; Porous materials
• Subject Areas: Geotechnology; Highways; Materials; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00491137
• Record Type: Publication
• Files: TRIS, ATRI, USDOT
• Created Date: Feb 28 1990 12:00AM