FULL DEPTH PAVEMENT RECLAMATION: STATE-OF-THE-PRACTICE

Full depth reclamation in the United States increasingly is being selected by cities, counties, state departments of transportation, federal agencies, airports and consulting engineers to reconstruct severely deteriorated asphalt pavements. This process allows complete reconstruction using 100% of existing pavement materials and grade, cross slope and underlying pavement problems can be corrected. A new base course is produced by the recycling of existing asphalt pavement materials and, when required, some underlying materials. This method of cold recycling an asphalt pavement has the environmental advantages of reduced energy consumption, greatly reduced use of new materials and depletion of their sources, little to no disposal of existing pavement materials (in landfills), and reduced air pollution. A thorough project evaluation is essential for project selection, design and construction. The procedures in the evaluation process that must be completed are (1) conducting a pavement condition survey, (2) pavement coring or placing test holes, (3) sampling of the asphalt pavement, any granular base and subgrade, (4) laboratory testing of materials, (5) pavement structural design, and (6) an economic analysis for initial and life cycle costs. Also, proper construction procedures and quality control are critical along with an experienced contractor that is committed to both.

Language

  • English

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Filing Info

  • Accession Number: 00752136
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Aug 10 1998 12:00AM