Testing Deformation and Compressive Strength of the Frozen Fine-Grained Soils With Changed Porosity and Density

Abstract

Current paper focuses on the laboratory experiments performed wit aim to test the deformation in the frozen loam soil specimens. Loam frozen soils are subject to the external effects, such as climate and environmental impacts including temperature changes. Soil heave is one of the key features restraining possible area development: construction of buildings, roads and railways. Necessarily, this requires the improvements of methods of the assessment of heave. This research evaluated the compressive strength and deformation in several specimens of the frozen soil. The approach included varying load and physical properties of soil specimens: porosity, pore filling, moisture, density of soil particles and dry soil density. Besides during the experiment, the external conditions were changed: decreased temperature and increased load pressure. The experiment is based on the UPG-MG4-01. The paper presented the laboratory tests of heave and compressive strength of the frozen soils using applied geotechnical methods.

Keywords: Frozen soils, Frost heave, Deformation, Compressive strength, Soil porosity, Soil density, Clay, Loam

JEL Classification: C00, C60, C61, C62, C63, C80, C83, C88, C89, C90, C93