Effects of jackhammer weight on bridge deck preparation prior to overlay.

Details

• Corporate Creators:
  CTC & Associates LLC ; Wisconsin. Dept. of Transportation. Research and Library Section
• Subject/TRT Terms:
  • Bridge decks
  • Concrete overlays
  • Overlays (Pavements)
  • Jackhammers, Bridge decks, Bridge deck overlays, Pavement overlays
• Resource Type:
  Tech Report
• Geographical Coverage:
  Wisconsin
• Corporate Publisher:
  Wisconsin. Dept. of Transportation. Research and Library Unit
• Abstract:
  We found one citation for a research project directly related to the issue of jackhammer weight: a 2002 Missouri DOT study. ; Because we were unable to identify any other published research on this topic, we have included excerpts from 14 ; state specifications on surface preparation prior to placement of a bridge deck overlay. Of the specifications we ; located related to concrete removal on bridge decks (especially prior to overlay): ; Seven agencies (five states and two Canadian provinces) limit jackhammer weight to 30 to 35 pounds or ; less. ; Two agencies limit jackhammer weight to 45 pounds or less. In addition, one national research report (a ; 1992 report of the Strategic Highway Research Program) references 45 pounds as a common cutoff among ; state agencies. ; One agency limits jackhammer weight to 60 pounds or less. ; Four agencies allow flexibility in jackhammer weight based on engineering judgment.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/21789/dot_21789_DS1.pdf
• File Type:
  [PDF - 263.74 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:1cbe08922e7de230e7bcadfa41147f186fb0e32c948f44297d50c654f4270cc42ade2972fe0ea6ac182e81a5d19ec602a51693148fcb8d8253e5c1a225c5d105