FIELD DETERMINATION OF THE AREAL EXTENT OF STRIPPING IN IDAHO PAVEMENTS

RESEARCH WAS CONDUCTED ON STRIPPING WHICH IS ONE OF THE MAJOR FACTORS CAUSING THE FAILURE OF ASPHALT PAVEMENTS IN IDAHO. THIS PROJECT WAS CONDUCTED TO DETERMINE THE AERIAL EXTENT OF STRIPPING CHARACTERISTICS ACCORDING TO THEIR SERVICE EXPERIENCE. A STATE MAP IS PRESENTED SHOWING AREAS OF STRIPPING AGGREGATE AS DETERMINED BY RELATING THE PROJECTS TO THE SOURCES OF AGGREGATE. THE DATA INDICATE THAT STRIPPING IS NOT NECESSARILY RELATED TO A PARTICULAR TYPE OF AGGREGATE, NOT TO A SPECIFIC GRADE OR SOURCE OF ASPHALT. PAVEMENTS MADE OF NEARLY EVERY TYPE OF AGGREGATE AND ALL TYPES, AND GRADES, AND MANY SOURCES OF ASPHALT WERE SAMPLED, AND FOUND TO BE STRIPPING TO SOME DEGREE. DATA WERE COLLECTED BY JACKHAMMER SAMPLING AND VISUAL RATING OF THE SAMPLES. A TABLE IS PRESENTED WHICH GIVES THE AGE OF EACH PROJECT TESTED AND RELATES STRIPPING TO THE SOURCES OF AGGREGATE AND ASPHALT, AND TO THE GRADE AND DESIGN PERCENT OF ASPHALT. AGE DOES NOT SEEM TO BE A FACTOR IN STRIPPING, NECESSARILY AFTER TWO YEARS. THERE SEEMS TO BE LITTLE OR NO CORRELATION BETWEEN THE DEGREE OF STRIPPING IN AN ASPHALT PAVEMENT MIX AND THE PERCENT OF ASPHALT USED. IN COMPARING PAVEMENT CONDITION TO AMOUNT AND DEGREE OF STRIPPING, THERE APPEARS TO BE NO DIRECT CORRELATION. LONGITUDINAL CRACKING APPEARS TO BE THE MAJOR FAILURE OF THE PAVEMENTS. FOLLOWED CLOSELY BY TRANSVERSE CRACKING. BOTH OF THESE OCCUR IN PAVEMENTS EXHIBITING LITTLE OR NO STRIPPING AS WELL AS THOSE WITH SEVERE STRIPPING. THE SAME IS TRUE OF RUTTING AND RAVELLING.

  • Supplemental Notes:
    • Project No 24, 24 PP, 2 FIG, 3 TAB, 2 APP
  • Corporate Authors:

    Idaho Department of Highways

    P.O Box 7129
    Boise, ID  United States  83707
  • Authors:
    • Hatch, L M
  • Publication Date: 1969-8

Subject/Index Terms

Filing Info

  • Accession Number: 00211456
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Nov 24 1994 12:00AM