Effects of Early Traffic Loading on a Bonded Concrete Overlay

Details

• Creators:
  Huddleston, Jeffrey Lance ; Fowler, David W. ; McCullough, B. Frank
• Corporate Creators:
  University of Texas at Austin. Center for Transportation Research
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Transfer Office
• Subject/TRT Terms:
  • Beams
  • Concrete
  • Concrete overlays
  • Concrete tests
  • Deflection
  • Driver rehabilitation
  • Fatigue (Mechanics)
  • Flexural strength
  • Fracture mechanics
  • Laboratory studies
  More +
• Publication/ Report Number:
  TX-96/2911-3
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas ; United States
• Edition:
  Interim
• Corporate Publisher:
  University of Texas at Austin. Center for Transportation Research
• Description:
  The bonded concrete overlay (BCO) is emerging as a method of pavement repair which minimizes costs and traffic disruption. When existing methods of expedited paving are combined with rapid strength gain concrete, the potential exists to return traffic on to a pavement within twenty-four hours of closure. In order to determine the long-term effects of early traffic loading on the IH-10 BCO in El Paso, Texas, a fatigue study of BCO beams was conducted. Seven beam specimens/ with overlays ranging from twelve hours to seven days of age1 were tested. The progression of beam deflections and cracking were monitored throughout each test to determine trends in fatigue damage with progressively younger overlays. Results indicate that rapid strength and stiffness gain in the overlay concrete minimize fatigue damage in young BCOs. Final deflections and cracking for beams loaded at twelve hours compared favorably with fully cured beams, indicating that traffic application at early ages is not detrimental to long-term pavement behavior.
• Format:
  PDF
• Funding:
  7-2911
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/83432/dot_83432_DS1.pdf
• File Type:
  [PDF - 1.87 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:eeccffca1ace218d1994abe7309737154cdc6bc67fda366cb4057c30d710b37fa23d3bdebcd71bdc0f3ed0350e8ef0f21e9328fc5e850b05fdb97d206080e3e1