Subgrade Insulation to Prevent Soil Freezing

Details

• Corporate Creators:
  Iowa Highway Research Board
• Corporate Contributors:
  Iowa State Highway Commission
• Subject/TRT Terms:
  Concrete Pavements Frost Heaving Ground Freezing Heat Insulating Materials Polystyrene Subgrade (Pavements) Temperature Measurement Thermocouples
• Publication/ Report Number:
  HR-87
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Iowa
• Corporate Publisher:
  Iowa State Highway Commission
• Abstract:
  This report concerns the use of thermal insulation under rigid pavement. It is recognized that the desirability of preventing soil freezing applies equally to the supporting subgrade for flexible pavement. The exact placement of the insulation under either type of pavement will depend upon individual job requirements and the ingenuity of the designer. It should be kept in mind that the installation method and its compatibility with standard construction procedures is an important factor in the cost of the project. If the installation method is complicated, it will likewise be costly. In this event, the use of thermal insulation may not prove economical in comparison with the conventional practice of replacing the frost-susceptible subgrade soil with granular material.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:8f3cc70f7651552469da1c1259070934cf5c80cc2f64c9e687b59b6276d570b4
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/66638/dot_66638_DS1.pdf
• File Type:
  [PDF - 2.27 MB ]