Synthesis/literature review for determining structural layer coefficients (SLC) of bases.

Details

• Creators:
  Hiltunen, Dennis R.
• Corporate Creators:
  University of Florida. Dept. of Civil and Coastal Engineering
• Corporate Contributors:
  Florida. Dept. of Transportation
• Subject/TRT Terms:
  Base Course (Pavements) Layer Coefficient (Pavements) Literature Reviews Pavement Design Pavement Layers Structural Number (Pavements)
• Publication/ Report Number:
  BDV31-977-27
• Resource Type:
  Tech Report
• Geographical Coverage:
  Florida
• Corporate Publisher:
  University of Florida
• Abstract:
  FDOT’s current method of determining a base material structural layer coefficient (SLC) is detailed in the
  
  Materials Manual, Chapter 2.1, Structural Layer Coefficients for Flexible Pavement Base Materials.
  
  Currently, any new base material not approved under FDOT specifications must undergo (1) laboratory
  
  testing, (2) test pit investigation, and (3) a project test section for constructability and roadway performance
  
  evaluation to determine a SLC for design purposes. The test section evaluation phase can take up to five
  
  years to compare the pavement performance of the new base material with a limerock base control section.
  
  In this project, a thorough review of literature has been conducted of current and past practices for the
  
  determination of structural layer coefficients (SLC) of pavement base materials. The review organizes the
  
  methodologies into three broad categories: (1) methods that determine SLCs via relationships with other
  
  material parameters; (2) methods that determine SLCs via estimates of the structural number (SN) of
  
  existing and available pavement sections; and (3) methods that establish SLCs via equivalencies with a
  
  reference material. Several of the strategies reviewed provide opportunities for estimating SLCs of both
  
  traditional and new base course materials in a more accelerated fashion and in considerably less time than
  
  the five years often required at present.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:28b2cd6e84f5325783038608e24b56f928f9dd3b936e3e885846606a08fcff15
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28523/dot_28523_DS1.pdf
• File Type:
  [PDF - 481.96 KB ]