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:
  Contraction Joints Cutting Durability Early-entry Sawing Joints (Engineering) Pavements Rigid Pavement Rigid Pavements Sawing
• 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.
  
  
• Format:
  PDF
• Funding:
  ICT R27-63
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:0387acbdf0fb60c556fbeddccc67dd8ab68774d664e7c7d5277c2da8da08067a
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24790/dot_24790_DS1.pdf
• File Type:
  [PDF - 25.36 MB ]