Comparison Between the Field and Laboratory Measured Properties of a Clay Liner

by Andrew S. Rogowski, US Dep of Agriculture, Northeast Watershed Research Cent, United States,



Document Type: Proceeding Paper

Part of: Optimizing the Resources for Water Management

Abstract: Hydraulic conductivity (K) and bulk density (BD) of an experimental clay linear were evaluated at a large number of locations using standard methods. They were then compared to laboratory values obtained on cores removed from the same locations. Although there was little difference among the means of different methods, all showed much variability. Even though the largest K measured was less than 0.1m/day, breakthrough was observed at numerous locations 2 days after ponding a 0.3m thick liner.

Subject Headings: Clay liners | Clays | Hydraulic conductivity | Density currents | Soil analysis | Linear functions | Professional societies

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