Dowel bar retrofit evaluation, district 12, Orange County, Interstate 405

Details

• Creators:
  Smith, Karl ; Glauz, Doran ; Alarcon, Raul
• Subject/TRT Terms:
  • Concrete pavements
  • Pavement maintenance
  • Dowels (Fasteners)
  • Rehabilitation (Maintenance)
  • Quality control
  • Inspection
  • Errors
  • Specifications
  • Dowel bar retrofit (DBR)
  • Interstate 405
  More +
• Resource Type:
  Research Paper
• Geographical Coverage:
  Orange County (California)
• Corporate Publisher:
  California. Department of Transportation
• Abstract:
  A dowel bar retrofit project on Interstate 405 near Irvine in Orange County began to exhibit sights of failure in the bond between the existing concrete and the backfill grout in the dowel bar slots. It was requested the Office of Rigid Pavement and Structural Concrete evaluate the dowel bar installations and make recommendations. Two on-site visits were made to assess the conditions of the retrofit. The investigation focused primarily on the pavement distresses and testing of samples. The evaluation showed the installations were not done in conformance with specifications. Dowel bars were placed close to pavement surface, backfill grout was not properly consolidated and did not properly bond, and deleterious material was found between backfill grout and existing concrete in the slots. 1 Table, 32 figures, 37 p.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/15921/dot_15921_DS1.pdf
• File Type:
  [PDF - 4.37 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b45005c4b35e90583c0a3926fa98ecb1e1a7cd1f71244a5ae6285fbd637e4354