A METHOD FOR EVALUATING PAVEMENTS AND/OR THEIR SUBGRADES

DEFLECTION MEASUREMENT CAUSED BY A WHEEL LOAD IS ONE OF THE BEST AVAILABLE MEANS TO EVALUATE THE STRUCTURAL STRENGTH OF FLEXIBLE PAVEMENTS. HOWEVER, IT HAS BEEN DIFFICULT TO DETERMINE WHETHER INCREASES OR DECREASES IN DEFLECTION ARE ATTRIBUTABLE TO THE PAVEMENT STRUCTURE OVERLYING THE SUBGRADE OR TO THE SUBGRADE ITSELF. A PROCEDURE, BASED LARGELY ON THEORY IS DEVELOPED FOR ESTIMATING THE SUBGRADE AND/OR PAVEMENT STRUCTURE STRENGTH FROM MEASUREMENTS OF THE MAXIMUM DEFLECTION PLUS FOUR ADDITIONAL DEFLECTION MEASUREMENTS WITHIN THE DEFLECTED BASIN BY THE DYNAFLECT. /FHWA/

• Corporate Authors:

  Virginia Highway Research Council

  Charlottesville, VA  United States 

  Virginia Department of Highways

  Richmond, VA  United States  23219

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Vaswani, N K
• Publication Date: 1971

Subject/Index Terms

• TRT Terms: Deflection; Evaluation; Flexible pavements; Pavement performance; Pavements; Strength of materials; Structural analysis; Subgrade (Pavements); Wheel loads
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00206443
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT, STATEDOT
• Created Date: Aug 8 1971 12:00AM