BITUMINOUS RESURFACINGS

NEW YORK STATE HAS SPENT A LARGE AMOUNT OF MONEY ON OVERLAYING FLEXIBLE PAVEMENTS WITH EITHER OF TWO MATERIALS: A ONE-INCH ARMOR COAT OR A 2 1/2 TO 3-INCH LAYER OF ASPHALT CONCRETE. THE ARMOR COAT IS USED WHEN ONLY THE SURFACE, OR RIDING QUALITY, NEEDS IMPROVING. THE THICKER LAYER OF ASPHALT CONCRETE IS USED WHEN THE PAVEMENT REQUIRES STRUCTURAL IMPROVEMENT. DETERMINATION IS BEING MADE OF THE SERVICE LIFE AND IMPROVEMENT IMPARTED BY BITUMINOUS OVERLAYS ON FLEXIBLE PAVEMENTS AS INFLUENCED BY SUCH FACTORS AS TRAFFIC, CLIMATE, AND THE CONDITION AND TYPE OF THE PAVEMENT PRIOR TO RESURFACING. IT IS DESIRED TO ESTABLISH A RELATIVELY SIMPLE MEANS OF DETERMINING WHEN THE ARMOR COAT WOULD BE ADEQUATE, AND WHEN A THICKER OVERLAY WOULD BE NECESSARY. EXISTING OVERLAYS WILL BE SELECTED FOR STUDY BY REVIEWING DEPARTMENT RECORDS. ON ALL OVERLAYS, 2000-FT TEST SECTIONS WILL BE SELECTED IN THE OFFICE USING CONTRACT PLANS. THE FOLLOWING MEASUREMENTS WILL BE MADE ON EXISTING OVERLAYS, PAVEMENTS TO BE OVERLAYED, AND NEW OVERLAYS IMMEDIATELY AFTER COMPLETION AND PERIODICALLY FOR SEVERAL YEARS: (1) SURFACE ROUGHNESS, IN INCHES PER MILE, USING THE ROUGHOMETER IN BOTH WHEEL PATHS, (2) RUT DEPTH OF BOTH WHEEL PATHS AT FIFTY FT. INTERVALS, AND (3) AREA OF PATCHING IN SQUARE FEET AND LENGTH OF CRACKING IN LINEAR FEET. THESE VALUES WILL BE USED TO CALCULATE A PRESENT SERVICEABILITY INDEX FOR EACH TEST SECTION. BENKELMAN BEAM DEFLECTION MEASUREMENTS WILL BE MADE ON PAVEMENTS TO BE OVERLAYED AND ON THE OVERLAY AFTER COMPLETION TO DETERMINE THE ADDED STRENGTH IMPARTED TO THE PAVEMENT BY THE OVERLAY.

  • Supplemental Notes:
    • Tech Memo PR 67-5, PHYSICAL RES PROJ NO 35, 8 PP, 2 FIG
  • Corporate Authors:

    New York State Department of Public Works

    Bureau of Physical Research
    Albany, NY  United States 
  • Authors:
    • Graham, M D
  • Publication Date: 1967-8

Subject/Index Terms

Filing Info

  • Accession Number: 00210702
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Mar 12 1994 12:00AM