Acceptable Vibrations on Green Concrete

Vibrations are potentially harmful to green concrete in shaft foundations, and many states, including Mississippi, cautiously established limits in terms of compressive strength, distance boundary, and wait time to protect early age concrete. But these limits could be overly conservative with respect to experimental evidence, and perhaps unnecessarily impede construction schedules and add cost to projects. The objective of this study was to quantify the effects of early age vibrations on concrete performance. Concrete cylinders were exposed to several combinations of vibration magnitudes and durations that were representative of shaft construction, and at ages coincident with the sensitive period between initial and final set. The vibrations had no consistent effect on compressive strength and electrical resistivity. There was also no discernable difference between limestone and river gravel coarse aggregates.

  • Record URL:
  • Corporate Authors:

    Mississippi State University, Mississippi State

    Department of Civil and Environmental Engineering, 501 Hardy Road
    P.O. Box 9546
    Mississippi State, MS  United States  39762

    Mississippi Department of Transportation

    Research Division, P.O. Box 1850
    Jackson, MS  United States  39215-1850

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Freyne, Seamus F
    • Watkins, Mitchell L
  • Publication Date: 2013-12-31

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: References; Tables;
  • Pagination: 31p

Subject/Index Terms

Filing Info

  • Accession Number: 01530970
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/MS-DOT-RD-13-252, MS-DOT-RD-13-252
  • Contract Numbers: State Study 252
  • Files: NTL, TRIS, ATRI, USDOT, STATEDOT
  • Created Date: Jul 18 2014 9:28AM