USE OF INSULATING LAYER TO ATTENUATE FROST ACTION IN HIGHWAY PAVEMENTS

CONVENTIONAL METHODS OF TREATING THE DETRIMENTAL EFFECTS OF FROST ACTION ARE AIMED AT REPLACING OR ALTERING THE FROST -SUSCEPTIBLE SOILS AND/OR CONTROLLING THE WATER SUPPLY. THE USE OF A STYROFOAM INSULATING LAYER TO ATTENUATE FROST ACTION TO REDUCE THE EFFECT OF THE FREEZING TEMPERATURES HAS BEEN UNDER STUDY FOR THE PAST 5 YR. STYROFOAM INSULATING LAYERS HAVE SHOWN PROMISING RESULTS UNDER TEST IN A NEW FLEXIBLE PAVEMENT AT MIDLAND, MICH., IN A NEW RIGID PAVEMENT NEAR WEST UNION, IOWA, AND IN A MAINTENANCE TREATMENT OF SEVERE FROST HEAVE IN FLEXIBLE PAVEMENT NEAR MINNEAPOLIS, MINN. A RELATIVELY SMOOTH SUBGRADE SURFACE IS REQUIRED ON WHICH TO PLACE THE STYROFOAM BOARDS, AND AN 8-IN. THICK LIFT OF GRANULAR MATERIAL PLACED OVER THE STYROFOAM WILL SUPPORT CONSTRUCTION TRAFFIC. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 11-27
  • Monograph Title: Frost action and insulation against subgrade freezing
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00217973
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Mar 3 1994 12:00AM