Moisture characteristics of compacted soils for use in trench covers

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Authors:Klein, S.; Johnson, T. M.; Cartwright, Keros
Author Affiliations:Primary:
Ill. State Geol. Surv., Champaign, IL, United States
Volume Title:Role of the unsaturated zone in radioactive and hazardous waste disposal
Volume Authors:Mercer, James W., editor; Rao, P. S. C.; Marine, I. Wendell
Source:p.101-111; Role of the unsaturated zone in radioactive and hazardous waste disposal, Philadelphia, PA, May 31-June 4, 1982, edited by James W. Mercer, P. S. C. Rao and I. Wendell Marine. Publisher: Ann Arbor Sci. Publ., Ann Arbor, MI, United States. ISBN: 0-250-40620-9
Publication Date:1983
Note:In English. 11 refs.; illus. incl. 1 table
Summary:The hydraulic behavior of unsaturated, compacted, fine-grained materials affects the performance of several types of engineering facilities, such as covers for waste disposal sites, dam cores, and highway subgrades. Unsaturated moisture movement may significantly affect infiltration through trench covers; highway subgrades are also subjected to seasonal temperature or moisture variations. This study investigates the hydraulic conductivity of two geologic materials that are relatively common in central Illinois-windblown silt (loess) and glacial till. The importance of compaction moisture content is illustrated for unsaturated and saturated conditions. The range of capillary pressures investigated was limited to between 0 and 1000 cm of water; the range of capillary pressures commonly observed in the relatively humid eastern part of the United States. It should be noted that observed capillary pressures in arid regions will be much greater. The conclusions presented here will probably also be valid in arid regions, although this was not explicitly shown. (See also W87-06947) (Lantz-PTT)
Subjects:Cenozoic; Clastic sediments; Clay; Compaction; Compactness; Engineering geology; Ground water; Hydraulic conductivity; Infiltration; Loess; Moisture; Peoria Loess; Pleistocene; Quaternary; Saturation; Sediments; Silt; Soils; Surveys; Till; Unsaturated zone; Waste disposal; Water regimes; Wedron Formation; De Witt County Illinois; Illinois; Saint Clair County Illinois; United States; Compacted soils; Fairgrange Till Member; Materials, properties; Trench covers
Record ID:1984003220
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute. Reference includes data from USGS product, Selected Water Resources Abstracts, Reston, VA, United States
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