RESPONSES OF PROTOTYPE FLEXIBLE PAVEMENTS SUBJECTED TO REPETITIVE AND STATIC LOADS

THIS REPORT DESCRIBES THE DETAILS INVOLVED IN CONSTRUCTING AND TESTING TWO THREE-LAYER PROTOTYPE FLEXIBLE PAVEMENTS. THE RESULTS OF STATIC AND DYNAMIC LOAD TESTS CONDUCTED ON THE PAVEMENTS AT 70 DEGREES ARE PRESENTED. THE PROTOTYPE PAVEMENTS WERE IDENTICALLY CONSTRUCTED IN TWIN 10 FT. BY 10 FT. CONCRETE TEST PITS WITH THE EXCEPTION THAT THE ASPHALT CONCRETE LAYERS WERE OF A DIFFERENT THICKNESS. STATIC LOADING AND TWO DIFFERENT CONFIGURATIONS OF A HAVERSIVE LOADING FUNCTION WERE UTILIZED IN THE TESTING PROGRAM. THE PAVEMENT'S RESPONSES WERE MEASURED IN TERMS OF RESILIENT AND ACCUMULATED SURFACE DEFLECTION AND SURFACE AND SUBSURFACE STRAIN. IN GENERAL IT WAS FOUND THAT A LINEAR RELATIONSHIP EXISTED BETWEEN LOAD LEVEL AND RESPONSE FOR EACH TYPE TEST. A SIGNIFICANT AMOUNT OF TIME DEPENDENT BEHAVIOR WAS EXHIBITED BY THE PAVEMENTS DURING THE STATIC LOAD TESTS AND DURING DYNAMIC TESTING AT THE LOWER RATIO OF LOAD DURATION TO REST PERIOD. ACCUMULATIVE DEFORMATION WAS FOUND TO BE MORE PRONOUNCED IN THE THICKER PAVEMENT AND AT LOCATIONS ON THE SURFACE CLOSE TO LOAD CENTER. /FHWA/

  • Corporate Authors:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Kenis, W J
  • Publication Date: 1972-1

Media Info

  • Pagination: 66 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00206489
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-72- 8, FCP 25C1-072
  • Files: TRIS, USDOT
  • Created Date: Apr 23 2003 12:00AM