PREDICTION OF VOLUME CHANGE IN UNSATURATED CLAYS

As response to environmental changes, unsaturated expansive clays causes volume and stress changes. This paper presents a method to predict the behavior of expansive clays. It was developed from laboratory swelling tests measuring lateral stress and volume changes under controlled suction. The tests were conducted under constant total vertical stress and zero lateral strain conditions (Ko). The maximum lateral stress developed is shown to become greater during unsaturated than at saturated condition. The experimental investigation was realized on undisturbed soil samples taken from the southern suburbs of Madrid. The procedure has general applicability for unsaturated soils and it predicts not only swelling but also shrinkage. (A) For the covering abstract see IRRD 881647.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9054105836
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • SABBAGH, A
• Conference:
  • PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON UNSATURATED SOILS/UNSAT '95/PARIS/FRANCE/6-8 SEPTEMBER 1995. VOLUME 2
• Publication Date: 1995

Language

• English

Media Info

• Features: References;
• Pagination: p. 791-6

Subject/Index Terms

• TRT Terms: Clay; Conferences; Measurement; Percent saturation; Shrinkage; Soil suction; Soils; Swelling soils; Volume
• Uncontrolled Terms: Increase
• ITRD Terms: 4177: Clay; 8525: Conference; 5907: Degree of saturation (mater); 9032: Increase; 6136: Measurement; 4743: Shrinkage; 4156: Soil; 5771: Suction; 5203: Swelling (soil); 6468: Volume
• Subject Areas: Data and Information Technology; Geotechnology;

Filing Info

• Accession Number: 00729140
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-5410-583-6
• Files: ITRD
• Created Date: Dec 12 1996 12:00AM