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Application of TDR in compacted clay soils: Issues of dry density, water content range, and calibration
- Source :
- Canadian Geotechnical Journal. March, 2023, Vol. 60 Issue 3, p321, 13 p.
- Publication Year :
- 2023
-
Abstract
- The paper deals with three issues relevant to the application of TDR methods for monitoring water content in compacted clay soils: (i) the dependence on dry density, (ii) the ability to monitor changes in water content in clay soil approaching saturation, and (iii) difficulties in performing efficient and reliable calibrations. A calibration scheme which inherently controls dry density of the specimen has been developed and applied. The methodology creates continuous calibration curves over a range of volumetric water content from a single test specimen. The new approach has been applied in monitoring the advance of a wetting front through a compacted swelling clay in a laboratory environment. Key words: TDR technique, water content, clay soil<br />Introduction The ability to measure and monitor soil water content at either field or laboratory scales, over extended periods of time, is important in a range of research and practical [...]
Details
- Language :
- English
- ISSN :
- 00083674
- Volume :
- 60
- Issue :
- 3
- Database :
- Gale General OneFile
- Journal :
- Canadian Geotechnical Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.740304317
- Full Text :
- https://doi.org/10.1139/cgj-2021-0428