Evaluation of the Long-Term Durability of Joints Cut Using Early Entry Saws on Rigid Pavements

Details

• Alternative Title:
  CIVIL ENGINEERING STUDIES : Illinois Center for Transportation Series No. 11-076
• Creators:
  Krstulovich, James M. ; Van Dam, Thomas J. ; Smith, Kurt D.
• Corporate Creators:
  Illinois Center for Transportation
• Corporate Contributors:
  Illinois. Department of Transportation. Bureau of Materials and Physical Research ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Rigid pavements
  • Sawing
  • Cutting
  • Contraction joints
  • Joints (Engineering)
  • Durability
  • Pavements
  • Rigid pavement
  • Early-entry sawing
  • Durability
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• Publication/ Report Number:
  FHWA-ICT-11-076 ; ICT-11-076 ; UILU-ENG-2011-2001
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  Early-entry sawing is an attractive operation to expedite the construction of jointed concrete pavements; however, ; there are some concerns that the early-entry sawing may compromise the pavement’s long-term performance. The Illinois ; Department of Transportation sponsored this study as an initial effort to investigate the feasibility of using early-entry sawing ; on rigid highway pavements in terms of expected joint durability. The joint performance as a function of cut depth and time ; was also considered. ; The investigation of early-entry sawing was integrated into an active construction project on Illinois Route 59 in ; Plainfield, IL featuring three 300-ft test sections (a control section cut to a depth of one-third of the slab thickness using a ; conventional wet saw, a test section cut to a depth of one-third of the slab thickness using an early-entry dry saw, and a test ; section cut to a nominal depth of 1.25 inches using an early-entry dry saw). During construction, paving and sawing ; operations were observed and documented; of particular interest were the sawing operations, during which signs of surface ; scarring, joint raveling, and slab edge breakouts were recorded and the extent of sawing-related damage was subjectively ; assessed. In addition to general pavement construction observations, climatic conditions were also monitored, along with ; pavement temperatures. Ambient climate conditions and slab mixture and temperature data were used to perform a ; HIPERPAV® analysis to assess the potential for early-age cracking. Compressive strength cylinders were also cast and ; tested at 3, 7, and 28 days. ; Additionally, cores were retrieved from joints throughout the test site (6 cores from each test cell), and a battery of ; durability tests were conducted, including petrographic analysis, freeze-thaw testing, and susceptibility to salt scaling. ; Overall observations from the field construction and findings from the laboratory testing program are summarized in this ; report.
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• Format:
  PDF
• Funding:
  ICT R27-63
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24790/dot_24790_DS1.pdf
• File Type:
  [PDF - 25.36 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:0387acbdf0fb60c556fbeddccc67dd8ab68774d664e7c7d5277c2da8da08067a