Laboratory Methods for Preparing Low-Density Frozen Saline Soil Samples

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by O. A. Ayorinde, U.S. Army Cold Regions Research and, Engineering Lab, Hanover, United States,

Document Type: Proceeding Paper

Part of: Cold Regions Engineering:

Abstract: Laboratory methods were developed for preparing low-density frozen saline soil samples with density values ranging from 85-110 lb/ft3. This range of density values is typical of below-water fill for winter-constructed arctic islands and causeways. These low-density frozen saline soil samples were used for triaxial-compression consolidated-drained (CD) tests to estimate the island/causeway strength. Two laboratory methods found adequate for low-density frozen samples were (a) backsaturating compacted freshwater frozen-soil chunks or lumps with seawater at the freezing temperature, and (b) depositing and consolidating freshwater frozen-soil chunks in a seawater column maintained at the freezing temperature.

Subject Headings: Frozen soils | Density (material) | Salinity | Soil analysis | Soil strength | Consolidated soils | Compacted soils | Soil tests | Arctic

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