QUANTITATIVE CHARACTERIZATION OF CYCLIC FREEZING AND THAWING IN STABILIZED PAVEMENT MATERIALS

FROST ACTION PARAMETERS (COOLING RATE, FREEZING TEMPERATURE, DURATION OF FREEZING, WARMING RATE, THAWING TEMPERATURE, AND DURATION OF THAWING) FOR A TYPICAL PAVEMENT SECTION WITH A STABILIZED BASE COURSE WERE DEVELOPED FOR 30 YEARS OF CLIMATIC DATA FOR FIVE SEPARATE LOCATIONS IN ILLINOIS. ALL CALCULATIONS WERE ACCOMPLISHED WITH THE MULTILAYERED PAVEMENT HEAT-TRANSFER MODEL DEVELOPED AT THE UNIVERSITY OF ILLINOIS. AN IDEALIZED FREEZE-THAW CYCLE WAS ESTABLISHED FOR ANALYSIS PURPOSES. THE FROST ACTION PARAMETER DATA SHOWED SUBSTANTIAL VARIABILITY AS RELATED TO THE EFFECTS OF GEOGRAPHICAL LOCATION, YEAR, AND MONTH. COMPARISONS OF THE DATA WITH THE STANDARD ASTM AND AASHO FREEZE-THAW TESTING PROCEDURES INDICATED THAT THE STANDARD PROCEDURES DID NOT ADEQUATELY SIMULATE FIELD SERVICE CONDITIONS IN ILLINOIS. THE SUBSTANTIAL DISCREPANCIES BETWEEN TEST AND FIELD CONDITIONS PRESENT JUST CAUSE FOR CAREFUL SCRUTINY OF THE STANDARD TEST PROCEDURES AND THE INTERPRETATION OF THE TEST RESULTS. IT IS APPARENT FROM THE RESULTS OF THIS STUDY THAT MORE REALISTIC AND RATIONAL FREEZE-THAW DURABILITY TESTING PROCEDURES SHOULD BE DEVELOPED FOR STABILIZED MATERIALS. APPROPRIATE FROST ACTION PARAMETER DATA, SIMILAR TO THOSE GENERATED IN THIS STUDY, SHOULD BE CONSIDERED IN THE DEVELOPMENT OF SUCH IMPROVED TESTING PROCEDURES. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 38-44
  • Monograph Title: Frost action: bearing, thrust, stabilization and compaction
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00237901
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Apr 1 1971 12:00AM