THE USE OF THERMAL INSULATING MATERIALS IN HIGHWAY CONSTRUCTION IN THE UNITED STATES

THERMAL INSULATING MATERIALS HAVE BEEN USED TO PROTECT FROST SUSCEPTIBLE SOILS FROM FREEZING AND TO A LESSER EXTENT TO PROTECT THE UNDERSIDE OF BRIDGES. SOME OF THE PROPERTIES OF INSULATING MATERIALS - DRY DENSITY, AND COMPRESSIVE STRENGTH, AND THERMAL CONDUCTIVITY- ARE COMPARED FOR EXTRUDED POLYSTYRENE BOARD, MOLDED POLYSTYRENE BOARD, POLYURETHANE, AND CELLULAR GLASS. THICKNESS REQUIREMENTS DEPEND ON THE INSULATING MATERIAL, THE GEOGRAPHIC LOCATION, AND WHETHER THE PAVEMENT IS NEW OR IS BEING REHABILITATED. COSTS ARE COMPARED: EXTRUDED POLYSTYRENE AND MOLDED POLYSTYRENE BOARDS ARE CONSIDERED INEXPENSIVE MATERIALS. HOWEVER, FOR THE OTHER MATERIALS COST BENEFITS MUST BE WEIGHED AGAINST TECHNOLOGICAL ADVANCES.

  • Corporate Authors:

    Royal Norwegian Council for Scientif & Ind Res

    Gaustadalleen 25
    Oslo 3,   Norway 
  • Authors:
    • Berg, R L
  • Publication Date: 1972-4

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 19-23
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00238063
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 20 1972 12:00AM