Evaluating the Benefits of Geogrid Reinforced Bases in Flexible Pavement : Technical Summary Report

Details

• Creators:
  Abu-Farsakh, Murad
• Corporate Creators:
  Louisiana Transportation Research Center
• Subject/TRT Terms:
  Base Course (Pavements) Flexible Pavements Geogrids Reinforced Concrete Pavements
• Publication/ Report Number:
  LTRC Report 450
• Resource Type:
  Booklet/Pamphlet
• Geographical Coverage:
  Louisiana
• Edition:
  Technical summary report.
• Corporate Publisher:
  Louisiana Transportation Research Center
• Content Notes:
  The inadequacy of many existing roads due to rapid growth in traffic volume provides a motivation
  
  for exploring alternatives to existing methods of constructing and rehabilitating roads. The use of
  
  geosynthetics to stabilize and reinforce paved and unpaved roadways offers one such alternative.
  
  Many studies were conducted to evaluate the improvements associated with geogrid reinforcement of
  
  pavements. It is widely believed that geogrid reinforcement of roadways can extend a pavement¿s
  
  service life and/or reduce the pavement¿s structural thickness.
  
  LTRC Technical Summary Report 450
  
  September 2009
  
  Several design methods were proposed for flexible pavements with geogrid reinforced base layers.
  
  These methods were either based on empirical or analytical approaches. Empirical design methods
  
  are usually based on obtaining a performance level from a laboratory model test, which is then
  
  extrapolated to the field conditions for design application. The geogrid reinforced design methods
  
  based on analytical solution do not address all the variables that affect the performance of these
  
  pavements. This report is part of a research study on evaluating the benefits of geogrid reinforcement
  
  of base layer in flexible pavements. It presents the findings from laboratory triaxial tests and finite
  
  element analyses. Another report of this study will present the findings from large-scale cyclic plate
  
  load tests on ALF sections and sections built inside a test box.
  
  
• Format:
  PDF
• Funding:
  LTRC Proj. No. 05-5GT ; State Proj. No. 736-99-1312
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:95252cd064ecb5ace9f63320368db8798e64e51e0fa42793cdbd3dabe417c347
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/22299/dot_22299_DS1.pdf
• File Type:
  [PDF - 63.54 KB ]