PERMEABILITY OF THREE COMPACTED TROPICAL SOILS

This paper presents studies of permeabilities of three soil samples of widely differing properties at various degrees of saturation, various compactive efforts and various thixotropic strength ratios. The soils studied consist of a soft clay shale--attapulgite, a black cotton soil, and a lateritic kaolinitic soil. The results indicate the attapulgite to be the most structure sensitive and the lateritic soil the least structure sensitive. The permeabilities reflect these structural behaviours of the soils. Based on the test results, a practical back pressure is recommended for complete saturation of these compacted soils. The influence of moulding moisture contents on permeabilities are presented and values of thixotropic strength ratios for the three soils are also recommended.(a) (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/04812085
• Corporate Authors:

  GEOLOGICAL SOCIETY

  BURLINGTON HOUSE, PICCADILLY
  LONDON,   United Kingdom  W1V 0JU
• Authors:
  • OLA, S A
• Publication Date: 1980

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 87-95
• Serial:
  • QUARTERLY JOURNAL OF ENGINEERING GEOLOGY
  • Volume: 13
  • Issue Number: 2
  • Publisher: GEOLOGICAL SOCIETY
  • ISSN: 0481-2085

Subject/Index Terms

• TRT Terms: Black cotton soils; Clay; Compacted soils; Compaction; Kaolin; Kaolinite; Laterites; Moisture content; Percent saturation; Permeability; Saturated soils; Shale; Soft clays; Soils; Strength of materials; Thixotropy; Tropics
• Geographic Terms: Nigeria
• Old TRIS Terms: Soil permeability
• ITRD Terms: 4118: Black cotton soil; 4177: Clay; 5904: Compaction (state of); 5907: Degree of saturation (mater); 4189: Kaolinite; 4138: Laterite; 5920: Moisture content; 8081: Nigeria; 5921: Permeability; 4168: Shale
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00331159
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Aug 15 1981 12:00AM