Astm D 4015 – 92 (Reapproved 2000) pdf free download

Standard Test Methods for
Modulus and Damping of Soils by the Resonant-Column

This standard is issued under the fixed designation D 4015; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1 These test methods cover the determination of shear
modulus, shear damping, rod modulus (commonly referred to
as Young’s modulus), and rod damping for solid cylindrical
specimens of soil in the undisturbed and remolded conditions
by vibration using the resonant column. The vibration of the
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 conditions (for example,
pore-water pressure, degree of saturation, temperature). These
test methods of modulus and damping determination are
considered nondestructive when the strain amplitudes of vibration are less than 10−4 rad (10−4 in./in.), and many measurements may be made on the same specimen and with various
states of ambient stress.

1.2 These test methods cover only the determination of the
modulus and damping, 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 procedures may be covered by, but are not
limited to, Test Methods D 2166 or D 2850.

1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

2.1 ASTM Standards:
D 2166 Test Method for Unconfined Compressive Strength
of Cohesive Soil2
D 2216 Test Method for Laboratory Determination of Water
(Moisture) Content of Soil and Rock2
D 2850 Test Method for Unconsolidated, Undrained Compressive Strength of Cohesive Soils in Triaxial Compression2

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