SUCTION STUDY ON COMPACTED CLAY USING THREE MEASUREMENT METHODS

An investigation was conducted to determine the effects of water contents and dry unit weights on measured suction pressures. The soil mixture used was a highly plastic clay with high shrink-swell potential. Four different configurations of soil specimen were compacted at two different water contents by using both standard and modified Proctor energies. The suction methods investigated in this study were pressure plate, filter paper, and thermocouple psychrometer. Matric and total suction parameters were compared, and their relationships to water content and dry unit weight were explored. The effectiveness of the filter paper method was recognized. The relationships of suction to moisture levels were confirmed and strengthened. The results indicate that effects of variations in dry unit weight on soil suction measurements may be neglected for disturbed samples in the field.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 28-34
  • Monograph Title: Environmental moisture effects on transportation facilities and nonearth materials' thermal effects on pavements
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00712977
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Oct 10 1995 12:00AM