This study was conducted to determine if reduction in air content by vibration of a well proportioned concrete mixture of relatively high cement content reduces the frost resistance of the hardened concrete and also to determine the effect of such reduction in air content on compressive strength. One 3/4-in. (19.0-mm) maximum-size crushed limestone aggregate concrete mixture was proportioned to have a compressive strength of approximately 5500 pst (37.92 MPa) at 28 days age. The mixture had an air content of 8 plus or minus %. Various vibration times were used to reduce the air content until the samples had an air content as low as could be practically obtained. Specimens were cast for determining compressive strength, resistance to freezing and thawing, and air void parameters to evaluate the effect of reduction in air content of the concrete on strength and frost resistance.

  • Corporate Authors:

    U.S. Army Waterways Experiment Station

    3909 Halls Ferry Road
    Vicksburg, MS  United States  39180-6199
  • Authors:
    • Tynes, W O
  • Publication Date: 1975-6

Media Info

  • Pagination: 38 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00092611
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: AEWES-MP-C-75-6 Final Rpt.
  • Files: TRIS
  • Created Date: Nov 5 1975 12:00AM