PAVEMENT BASE DRAIN EVALUATION

Portions of the Department's highway drainage system design have recently been revised. Essentially, the longitudinal drainage trench was moved closer to the pavement/shoulder joint, and the fine concrete sand layer was eliminated as a trench backfill material. The specified backfill material is the coarser PA #1B crushed aggregate (pea gravel). This report deals with the evaluation of the effects of these changes on pavement performance and compares the new pavement base drain system to the older pipe foundation underdrain system at the same site. (FHWA)

• Corporate Authors:

  Pennsylvania Department of Transportation

  Division of Materials and Testing, 1118 State Street
  Harrisburg, PA  United States  17120

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Hoffman, G L
• Publication Date: 1981-6

Media Info

• Pagination: 82 p.

Subject/Index Terms

• TRT Terms: Alternatives analysis; Base course (Pavements); Coarse aggregates; Design; Fine aggregates; Surface drainage; Trench backfill
• Old TRIS Terms: Highway drainage
• Subject Areas: Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I42: Soil Mechanics;

Filing Info

• Accession Number: 00342336
• Record Type: Publication
• Report/Paper Numbers: FHWA-PA-RD-78-5 Final Rpt., FCP 45D3-352
• Contract Numbers: 78-5
• Files: TRIS, USDOT, STATEDOT
• Created Date: Dec 22 1981 12:00AM