Comparison of Soil Suction and One-Dimensional Consolidation Characteristics of a Highly Plastic Clay

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TypeTechnical Report
Series titleTechnical Paper, Division of Building Research, National Research Council Canada; Issue 245
Physical description12 p.
Subjectclay soils; soil consolidation; hygroscopicity
AbstractInvestigation of the shrinking and swelling action of highly plastic clays on the Prairie Provinces has been carried out for several years by DBR/NRC. The problem facing engineers associated with the building industry is the lack of an analysis whereby the probable amount of vertical movement of a light structure can be predicted. A literature review of research work in England, South Africa, Australia, Israel and the United States was conducted and a study made of two analyses that have been developed; one by Croney et al ( 1952) and the other by Jennings (1957). A testing program was conducted which involved the determination of moisture- suction characteristics of Regina Clay and a comparison of these results with the moisture-pressure relationships obtained by the conventional consolidation test. It was found that virgin pressure-void ratio curves are essentially the same for both consolidation and suction tests at close to full saturation. The curvatures of the recompression branches, however, of the pressure-void ratio curves for the two test techniques are quite different.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number9684
NPARC number20378888
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Record identifier14d53325-ff5f-4fbc-ae52-00b88c937b5f
Record created2012-07-24
Record modified2016-10-03
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