EQUIPMENT FOR FROST HEAVE TESTS: TRICTION BETWEEN PLASTIC AND SOIL

FRIKTION MELLAN AKRYLPLAST OCH MORAEN

At the National Swedish Road and Traffic Research Institute, an apparatus has been developed for the determination of the frost heaving properties of different soils (Stenberg, L 1981). The test soils are frozen from below, confined in a plastic cylinder wall. During freezing, the unfrozen soil material is pushed upward by the frost heaving force, thus sliding against the cylinder wall. This movement causes a counteracting friction force which will have the same influence on the frost heave as an increased load pressure. It has been argued that the magnitude of this counterforce is of great concern. A test has been performed as described to determine the friction against the plastic cylinder.

Media Info

  • Pagination: 11 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00457145
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: VTI/MEDDELANDE-320A
  • Files: TRIS
  • Created Date: Jul 31 1987 12:00AM