Laboratory determination of dynamic moduli of frozen soils and of ice
By: Chester W. Kaplar
Contributors: Cold Regions Research and Engineering Laboratory (U.S.)
Series: Research report -- 163; Research report (Cold Regions Research and Engineering Laboratory (U.S.)) -- 163
Publisher: U.S. Army Materiel Command, Terrestrial Sciences Center, Cold Regions Research & Engineering Laboratory
Published: 1969
Place of publication: Hanover, N.H
Language: eng
Number of pages: 45
Subjects: Frozen ground; Ice; Elasticity; Materials; Dynamic testing
Description: The report presents a summary of results of laboratory investigations of frozen soils and ice to determine the elastic moduli by the dynamic (sonic) method. The elastic moduli were indirectly obtained by measuring the fundamental resonant frequencies of flexural, longitudinal, and torsional vibrations induced in prismatic beams by electromagnetic means. Vibration tests were performed on a total of 56 specimens representing 12 different materials (8 natural soil types, ranging from coarse-grained to fine-grained; 2 blended soils; a natural peat; laboratory-frozen ice and natural lake ice, at temperatures ranging from approximately +32F to -10F). Elastic wave velocities (longitudinal and torsional) were computed for each material in the range of test temperatures studied. All soils were saturated or were close to saturation. (Author).
Notes: "January 1969."

"DA task 1T062112A13001."

Includes bibliographical references (p. 24-27).