THE INCIDENCE OF STRIPPING AND CRACKING OF BITUMINOUS PAVEMENTS IN ONTARIO

A STATISTICAL SAMPLING COVERING THE ENTIRE PROVINCE OF ONTARIO, WAS CONDUCTED TO DETERMINE THE AMOUNT AND EXTENT OF AGGREGATE STRIPPING IN BITUMINOUS PAVEMENTS. THE TYPE OF STRIPPING EXAMINED WAS THAT WHICH STARTS AT THE PAVEMENT BASE AND SPREADS SLOWLY THROUGHOUT THE AGGREGATE TO WEAKEN THE ENTIRE STRUCTURE. STRIPPING TO SOME DEGREE WAS EVIDENT IN ALL AREAS EXAMINED AND THE INCIDENCE WAS MORE SEVERE THAN EXPECTED. IT WAS MORE EXTENSIVE OVER PRIMED GRANULAR BASES THAN UNPRIMED OR OLD PAVEMENT BASES. IT WAS ALSO MORE PRONOUNCED WHERE GRANITIC AGGREGATES PREDOMINATED. NO CORRELATION WAS FOUND, HOWEVER, BETWEEN THE ASPHALT SOURCE AND THE AMOUNT OF STRIPPING. THE FREQUENCY OF RANDOM CRACKING WAS FOUND, IN GENERAL, TO CORRELATE DIRECTLY WITH THE SEVERITY OF STRIPPING, BUT WAS NOT EVIDENT BETWEEN STRIPPING AND OTHER TYPES OF CRACKING. ALL OF THE SURVEY DATA OBTAINED WAS ANALYSED STATISTICALLY AND CONCLUSIONS WERE MADE AT A SIGNIFICANT PROBABILITY LEVEL. A PROCEDURE WAS ALSO DEVELOPED TO ASSIGN A STRIPPING RATING TO FIELD SURVEY SAMPLES. THIS DESCRIBES THE DEGREE TO WHICH STRIPPING HAS PROGRESSED IN A SAMPLE. /CGRA/

  • Supplemental Notes:
    • Report No109,23PP, 9FIG, 11TAB, 14REF, 2APP
  • Corporate Authors:

    Ontario Dept Hwys Jt Hwy Res Prog /Can

    ,    
  • Authors:
    • Fromm, H J
  • Publication Date: 1965-11

Subject/Index Terms

Filing Info

  • Accession Number: 00210558
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 29 1994 12:00AM