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Discussion of “unsaturated hydraulic conductivity of two compacted barrier soils”

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Discussion of “unsaturated hydraulic conductivity of two compacted barrier soils”

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dc.contributor.author Leong, Eng Choon
dc.contributor.author Rahardjo, Harianto
dc.date.accessioned 2011-11-29T08:21:05Z
dc.date.available 2011-11-29T08:21:05Z
dc.date.copyright 1997
dc.date.issued 2011-11-29
dc.identifier.citation Leong, E. C. & Rahardjo, H. (1997). Discussion of “Unsaturated Hydraulic Conductivity of Two Compacted Barrier Soils”. Journal of Geotechnical Engineering, 123(12), 1186-1188.
dc.identifier.uri http://hdl.handle.net/10220/7316
dc.description.abstract Unsaturated hydraulic conductivities were measured in the laboratory and the field for two compacted fine-grained soils used as barrier layers in landfill final covers. The instantaneous profile method was used for the laboratory and field measurements. Results of the tests show that similar unsaturated hydraulic conductivities exist in the laboratory and field for both soils. Furthermore, results of laboratory tests conducted with specimens prepared at different molding water contents and compactive efforts show that the unsaturated hydraulic conductivity function is insensitive to molding water content for matric suctions exceeding 20 m, but is strongly affected by compactive effort. Specimens compacted with modified Proctor effort had unsaturated hydraulic conductivities approximately one order of magnitude lower than those compared with a standard Proctor effort. It is also shown that estimated unsaturated hydraulic functions based on parameters describing the soil-water characteristic curve underpredict the unsaturated hydraulic conductivity functions of these barrier soils.
dc.language.iso en
dc.relation.ispartofseries Journal of geotechnical and geoenvironmental engineering
dc.rights © 1997 ASCE
dc.subject DRNTU::Engineering::Civil engineering::Geotechnical.
dc.title Discussion of “unsaturated hydraulic conductivity of two compacted barrier soils”
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.1061/(ASCE)1090-0241(1997)123:12(1186.2)
dc.description.version Accepted version

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