Long-term Performance of Granular Bases Including the Effect of Wet-Dry Cycles on Inverted Base Pavement Performance

Details

• Creators:
  Frost, J. David
• Corporate Creators:
  Georgia Institute of Technology. School of Civil and Environmental Engineering
• Corporate Contributors:
  Georgia. Department of Transportation. Office of Research ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Granular bases
  • Base course (Pavements)
  • Pavement performance
  • Pavement distress
  • Pavement design
  • Aggregates
  • Inverted base pavements
  • wet-dry cycles
  • pavement distress
  • slushing compaction
  More +
• Publication/ Report Number:
  FHWA-GA-17-1510
• Resource Type:
  Tech Report
• Geographical Coverage:
  Georgia ; United States
• Corporate Publisher:
  Georgia. Department of Transportation. Office of Research
• Abstract:
  The main objective of this study was to advance the understanding of alternative pavement designs. In particular, potential techniques such as inverted base pavements (IBP) have increased the importance of granular aggregate bases (GAB) in pavement structures. While extensive research has been conducted on the resilient behavior of GAB’s, their long-term behavior has not been give much attention, particularly under near-surface stress-moisture conditions prevalent in inverted base pavements. This project involved a series of preliminary tasks aimed at establishing a working framework for future studies on IBP and included: (i) investigations of alternative laboratory approaches to study the effect of wet-dry cycles on permanent deformation; (ii) field studies of the performance of existing IBP test sections using imaging techniques to establish a baseline for future performance measurements; (iii) development and initial testing of an apparatus for laboratory investigation of the “slushing” compaction technique; and (iv) promotion of IBP as a construction alternative.
• Format:
  PDF
• Funding:
  0011820
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32663/dot_32663_DS1.pdf
• File Type:
  [PDF - 5.60 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:76ba3a698a20797bdddd2bf51dc7dca9c70fe3585297eb4a12fe8441141712d0