Clay Liner Hydraulic Conductivity: Comparison of Field & Laboratory Tests

by James E. Nordquist, Chen & Associates Inc, Salt Lake, City, UT, USA,
G. Stephen Mason, Jr., Chen & Associates Inc, Salt Lake, City, UT, USA,
Gerald L. Olson, Chen & Associates Inc, Salt Lake, City, UT, USA,

Document Type: Proceeding Paper

Part of: Environmental Engineering


Clay liner hydraulic conductivities at three hazardous waste landfill cells in Oklahoma and Utah were measured in the laboratory and in the field during construction. Prior to construction of full scale liners, liner test fills were used to determine the construction effort and procedures required to obtain the desired hydraulic conductivity. The averages of field and laboratory hydraulic conductivity test results in this study were within one order of magnitude. This agreement between field and laboratory testing indicates that with careful field quality control, the hydraulic conductivity of a clay liner can be approximated by field tests or by tests on samples returned to the laboratory.

Subject Headings: Clay liners | Field tests | Hydraulic conductivity | Laboratory tests | Clays | Soil tests | Comparative studies | Hazardous wastes

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