Effects of Freeze-Thaw on Soil Mechanical Behavior

The variation of soil properties during the freeze-thaw cycles, especially the reduction of soil strength in the thaw stages, is the major cause of pavement damage. Preventing the reduced soil strength due to thaw is also critical for cold region transportation facilities, especially those underlain by permafrost. This paper introduces the experimental program to study on the effects of freeze-thaw on soil mechanical behaviors. An innovative TDR tube sensor was developed to nondestructively monitor the freeze/thaw process, from which the degree of freeze/thaw can be accurately determined. With the assistance of this tool, the effects of freeze/thaw on the soil mechanical behaviors including the deformation modulus, peak strength and volume change are investigated. From these measured soil mechanical properties, a simplified analyses is given to estimate the soil pressure on imbedded structures induced by freezing.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Yu, Xinbao
  • Liu, Nina
  • Yu, Xiong
• Conference:
  • Transportation Research Board 87th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2008-1-13 to 2008-1-17
• Date: 2008

Language

• English

Media Info

• Media Type: DVD
• Features: Figures; Photos; References; Tables;
• Pagination: 15p
• Monograph Title: TRB 87th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Freeze thaw durability; Freezing; Ground freezing; Pavement distress; Pavement maintenance; Pavement management systems; Soil mechanics; Soil stabilization
• Subject Areas: Design; Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01089564
• Record Type: Publication
• Report/Paper Numbers: 08-2732
• Files: TRIS, TRB
• Created Date: Feb 29 2008 7:41AM