Laboratory Tests of Liquid Nitrogen Soil-Moisture Samplers,
Abstract
The limited laboratory study was made to determine whether a method for quick-freezing and extracting soil samples provided more accurate determination of moisture content than did mechanical samplers, particularly for very wet soils. The quick-freezing was accomplished with liquid nitrogen poured into a hollow probe inserted in the soil. In tests on soils whose moisture contents ranged to well above the liquid limit, it was determined that accuracy with the quick-freeze method was almost as good as with the mechanical samplers. This conclusion was based mainly on reproducibility of results. The liquid nitrogen probe was used over a range of soil-moisture contents, the sampling of which normally requires use of three types of mechanical samplers. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1960
- Accession Number
- AD0756311
Entities
People
- H. D. Burke