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Critical state behavior of a compacted silt specimen

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Critical state behavior of a compacted silt specimen

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dc.contributor.author Trinh Minh Thu
dc.contributor.author Rahardjo, Harianto
dc.contributor.author Leong, Eng Choon
dc.date.accessioned 2011-12-07T07:34:56Z
dc.date.available 2011-12-07T07:34:56Z
dc.date.copyright 2007
dc.date.issued 2011-12-07
dc.identifier.citation Thu, T. M., Rahardjo, H., & Leong, E. C. (2007). Critical State Behavior of a Compacted Silt Specimen. Soils and Foundations, 47(4), 749-755.
dc.identifier.uri http://hdl.handle.net/10220/7351
dc.description.abstract Shear strength of unsaturated soil is commonly obtained from a consolidated drained (CD) triaxial test. However in many field situations, fill materials are compacted where the excess pore-air pressure developed during compaction will dissipate instantaneously, but the excess pore-water pressure will dissipate with time. This condition can be simulated in a constant water content (CW) triaxial test. The critical states of an unsaturated soil obtained from the CW and the CD triaxial tests have not been extensively investigated and compared. A series of CW and CD triaxial tests was carried out on a statically compacted silt. The results from this study show that the critical state lines at different matric suctions on the (q-p) plane were parallel with a slope of 1.28 for both the CW and CD triaxial tests, indicating the unique relationship between deviator stress and mean net stress. The results also indicate the unique relationship between the specific volume, v, and mean net stress, p, on the (v-p) plane for both the CW and CD triaxial tests. The slope of the critical state lines on the (v-p) plane for both the CW and CD triaxial tests decreased with the increase in matric suction.
dc.language.iso en
dc.relation.ispartofseries Soils and foundations
dc.rights © 2007 The Japanese Geotechnical Society
dc.subject DRNTU::Engineering::Civil engineering::Geotechnical.
dc.title Critical state behavior of a compacted silt specimen
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.3208/sandf.47.749
dc.description.version Accepted version

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