DEVELOPMENT OF AN ASPHALT PAVEMENT AIR PERMEAMETER AND EVALUATION OF ITS USE

AN ASPHALT PAVEMENT AIR PERMEAMETER, CALLED THE IDAHO PAVEMENT PERMEAMETER, AND PROCEDURES FOR MEASURING FIELD AND LABORATORY PERMEABILITIES BY DRAWING AIR THROUGH THE ASPHALT PAVEMENT SURFACINGS WERE DEVELOPED. THIS DEVICE WILL AID IN DETERMINING THE NEED FOR SEALCOATING ASPHALT PAVEMENTS TO PREVENT SURFACE RUNOFF FROM PERCOLATING THROUGH HIGHLY PERMEABLE SURFACINGS INTO THE BASE AND SUBGRADE. NUMEROUS TESTS WERE MADE FOR PAVEMENTS THROUGHOUT THE SYSTEM OF THE IDAHO DEPARTMENT OF HIGHWAYS. THESE DATA WERE COMPARED WITH THEORETICAL CONSIDERATIONS, PAVEMENT AGE, FIELD LOCATION, SEASONAL TRENDS, PAVEMENT TEMPERATURE, DATA FROM TESTING WITH THE SOILTEST PAVING METER AND WITH ENGINEERS OPINIONS AS TO THE NEED OF THE RESPECTIVE TEST PAVEMENTS FOR SEALCOATING. A STUDY WAS ALSO MADE OF THE RANGE OF PERMEABILITY VALUES THAT MIGHT BE EXPECTED FROM TYPICAL ASPHALT PAVEMENTS. THE EQUIPMENT AND PROCEDURES FOR MEASURING PERMEABILITIES IN THE FIELD GAVE RESULTS THAT APPEARED TO BE CONSISTENT AND REASONABLE. A GOOD RELATIONSHIP DEVELOPED BETWEEN INCREASING PAVEMENT AGE AND DECREASING PERMEABILITY. PERMEABILITY DECREASED GENERALLY FROM SPRING TO AUTUMN AND WITH INCREASED PAVEMENT TEMPERATURES, ALTHOUGH THERE WAS LIMITED DATA WITH WHICH TO STUDY THESE VARIATIONS. FURTHER TESTING WHEREBY GREATER ATTENTION IS DEVOTED TO CORRELATING THE MANY VARIABLES WITH THE PAVEMENT PERMEABILITY VALUE IS RECOMMENDED. NO RELATIONSHIP WAS APPARENT BETWEEN THE RESULTS OBTAINED WITH THE IDAHO PAVEMENT PERMEAMETER AND EITHER THE SOILTEST PAVING METER OR THE ENGINEERS OPINIONS FOR THE NEED FOR SEALCOATING.

  • Supplemental Notes:
    • Hpr-1/2/, BPR NO 3, STATE ITEM 3, RES PROJECT NO 4, JUN65
  • Corporate Authors:

    University of Idaho, Moscow

    Moscow, ID  USA  83844
  • Authors:
    • Pyk, N C
    • Hathaway, C W
    • Warnick, C C
  • Publication Date: 1965-6

Subject/Index Terms

Filing Info

  • Accession Number: 00210320
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 1 1994 12:00AM