Geosynthetic-Reinforced Unbound Base Courses: Quantification of the Reinforcement Benefits

As part of Research Project 0-4829, a new testing device was developed and a field monitoring program was initiated to evaluate the performance of geosynthetics used as reinforcement for unbound base courses. This implementation includes the use of the new testing device and procedures developed by the 0-4829 research project, which involves characterization of the confined stiffness in geosynthetic reinforcements. The project also provides continued monitoring of 32 experimental test sections constructed in Farm-to-Market Road (FM) 2 and 6 test sections constructed in FM1644 for the purpose of correlating field performance with material characterization. The experimental component of this implementation project was accomplished by testing 11 different geosynthetic reinforcement products in the small pullout test. The field component of this implementation project involved conducting continued condition surveys, subsurface exploration, and weather data gathering in order to establish the threshold of the proposed confined stiffness parameter in the new specification based on the field performance.

• Record URL:
  http://library.ctr.utexas.edu/ctr-publications/5-4829-01-2.pdf
• 
• Summary URL:
  http://library.ctr.utexas.edu/dbtw-wpd/query/id/32004
• Supplemental Notes:
  • Project Title: Pilot Implementation to Quantify the Benefits of Using Geosynthetics for Unbound Base Courses.
• Corporate Authors:

  University of Texas, Austin

  Center for Transportation Research, 1616 Guadalupe Street
  Austin, TX  United States  78701-1255

  Texas Department of Transportation

  Research and Technology Implementation Office, P.O. Box 5080
  Austin, TX  United States  78763-5080

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Zornberg, J G
  • Ferreira, J A Z
  • Roodi, G H
• Publication Date: 2013-8

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 757p

Subject/Index Terms

• TRT Terms: Base course (Pavements); Geosynthetics; Monitoring; Pull out test; Reinforcement (Engineering); Stiffness; Test procedures; Test sections
• Subject Areas: Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01493273
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-13/5-4829-01-2, 5-4829-01-2
• Contract Numbers: 5-4829-01
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Sep 16 2013 9:42AM