SYMPOSIA PAPER Published: 01 January 1970
STP38548S

Suggested Methods of Test for Shear Modulus and Damping of Soils by the Resonant Column

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These methods cover the determination of the shear modulus and damping capacity of cylindrical specimens of soils in the undisturbed and remodeled conditions by vibration, using the resonant column. The vibration of the specimen may be superposed on a controlled ambient state of stress in the specimen. The vibration apparatus and specimen may be enclosed in a triaxial chamber and subjected to an all around pressure and axial load. In addition, the specimen may be subjected to other controlled environment conditions (for example temperature). These methods for shear modulus and damping determination are considered nondestructive when the strain amplitudes of vibration are less than 10-4 in./in. and many measurements may be made on the same specimen and with various states of ambient stress. These methods cover only the determination of the shear modulus and damping capacity, the necessary vibration, and specimen preparation procedures related to the vibration, etc., and do not cover the application, measurement or control of the ambient stress. The latter may be covered by but are not limited to ASTM Method D 2166, Test for Unconfined compressive strength of cohesive soils or ASTM Method D2850, Test for Unconsolidated Undrained Strength of Cohesive Soils in Triaxial Compression.

Author Information

Hardin, BO
University of Kentucky, Lexington, Ky
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Details
Developed by Committee: D18
Pages: 516–529
DOI: 10.1520/STP38548S
ISBN-EB: 978-0-8031-5570-1
ISBN-13: 978-0-8031-0051-0