AGGREGATE BASE REINFORCEMENT OF SURFACED PAVEMENTS

Four series of large-scale experiments conducted in the Nottingham pavement test facility are described. The aim of the experiments was to investigate the aggregate base reinforcement potentials of geosynthetics (geogrid and woven geotextile) in surfaced pavements. The experiments included the study of prerutting and prestressing effects. To provide comparison between measured and calculated response, an analytical study was performed using a comprehensive finite element program gapps7. Test data relating to both permanent and resilient behaviour of individual test sections are compared and the influences on pavement performance due to prestressing, prerutting, stiffness, types and locations of geosynthetics are discussed. Improvements to pavement performance due to the use of geosynthetics were observed in some sections but, in others, no immediate benefit was observed. A cross-anisotropic model was found to give better representation of a granular base than isotropic non-linear elastic models. Better agreement between measured and calculated response was observed for stronger pavements.(a)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02661144
• Corporate Authors:

  Elsevier Science Publishers

  Crown House, Linton Road
  Barking, Essex IG11 8JU,   England 
• Authors:
  • CHAN, F
  • Barksdale, R D
  • BROWN, S F
• Publication Date: 1989

Language

• English

Media Info

• Pagination: p. 165-189
• Serial:
  • Geotextiles and Geomembranes
  • Volume: 8
  • Issue Number: 3
  • Publisher: Elsevier
  • ISSN: 0266-1144

Subject/Index Terms

• TRT Terms: Base course (Pavements); Durability; Evaluation and assessment; Finite element method; Flexible pavements; Geotextiles; Material reinforcement; Mathematical analysis; Mathematical models; Reinforcing materials; Stiffness
• ITRD Terms: 6471: Analysis (math); 5910: Durability; 9020: Evaluation (assessment); 6490: Finite element method; 2944: Flexible pavement; 4568: Geotextile; 6473: Mathematical model; 3471: Reinforcement (in mater); 2961: Roadbase; 5931: Stiffness
• Subject Areas: Geotechnology; Highways; Planning and Forecasting;

Filing Info

• Accession Number: 00498669
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM