FROST HEAVE TESTS BY NATURAL FREEZING

Field tests were made to study the possibilities of establishing the frost susceptibility of soils by natural freezing. Four concrete cylinders were built of separate rings and contained three soils in layers of different combinations. The instrumentation made the following readings possible: frost index, frost heave, frost penetration, accumulated water and soil temperature. Water content at frost heave maximum was determined by sample drilling. The results indicate that: 1) The heat flow from the frost line seems to be the dominating extensive parameter governing frost heave. 2) There are certain limits to the use of frost index, as well as, that radiation heat cannot be neglected in frost heave predictions. 3) The field testing method can and ought to be used as a complement to laboratory tests. 4) Field observations should be read continuously (automatization) and layered profiles should be avoided. (Author/TRRL)

Language

  • German

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 184 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00369484
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: No. 292A Monograph
  • Files: ITRD, TRIS
  • Created Date: Jan 31 1983 12:00AM