Standard Test Method for
One-Dimensional Consolidation Properties of Soils Using
Controlled-Strain Loading1

This standard is issued under the fixed designation D 4186; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of the last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope *

1.1 This test method covers the determination of the rate
and magnitude of consolidation of soil when it is restrained
laterally and drained axially and subjected to controlled-strain
loading.
NOTE 1—The determination of the rate and magnitude of consolidation
of soil when it is subjected to incremental loading is covered by Test
Method D 2435.

1.2 The values stated in SI units are to be regarded as the
standard. The values stated in inch-pound units are approximate.

1.3 This test method is currently undergoing extensive
review.

1.4 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to
address all of the safety problems 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 422 Test Method for Particle-Size Analysis of Soils2
D 653 Terminology Relating to Soil, Rock, and Contained
Fluids2
D 854 Test Method for Specific Gravity of Soils2
D 1587 Practice for Thin-Walled Tube Sampling of Soils2
D 2216 Test Method for Laboratory Determination of Water
(Moisture) Content of Soil, Rock, and Soil-Aggregate
Mixtures2
D 2435 Test Method for One-Dimensional Consolidation
Properties of Soils2
D 3550 Practice for Ring-Lined Barrel Sampling of Soils2
D 4220 Practices for Perserving and Transporting Soil
Samples2

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