Comparison of Fresh Concrete Air Content Methods & Analysis of Hardened Air Content in Wisconsin Pavements

Wisconsin Department of Transportation (WisDOT) and others have noted disparities between measured air entrainment as measured by the ASTM C231B pressure meter method and by ASTM C457 analysis of hardened concrete specimens. This proposal seeks to identify the source of this disparity and determine whether existing techniques for measuring fresh air content continue to be suitable for contemporary air entraining admixtures.


  • English


  • Status: Completed
  • Contract Numbers:


  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue
    Washington, DC  United States  20590
  • Start Date: 20131017
  • Expected Completion Date: 0
  • Actual Completion Date: 20151016
  • Source Data: RiP Project 36929

Subject/Index Terms

Filing Info

  • Accession Number: 01532673
  • Record Type: Research project
  • Source Agency: National Center for Freight and Infrastructure Research and Education (CFIRE)
  • Contract Numbers: DTRT06-G-0020
  • Files: UTC, RiP
  • Created Date: Aug 3 2014 1:00AM