ASTM D5856-95(2002)
(Test Method)Standard Test Method for Measurement of Hydraulic Conductivity of Porous Material Using a Rigid-Wall, Compaction-Mold Permeameter
Standard Test Method for Measurement of Hydraulic Conductivity of Porous Material Using a Rigid-Wall, Compaction-Mold Permeameter
SCOPE
1.1 This test method covers laboratory measurement of the hydraulic conductivity (also referred to as ) of laboratory-compacted materials with a rigid-wall, compaction-mold permeameter.
1.2 This test method may be used with laboratory-compacted specimens that have a hydraulic conductivity less than or equal to 1 X 10 -5 m/s. The hydraulic conductivity of compacted materials that have hydraulic conductivities greater than 1 X 10 -5 m/s may be determined by Test Method D 2434.
1.3 The values stated in SI units are to be regarded as the standard, unless other units are specifically given. By tradition in U.S. practice, hydraulic conductivity is reported in centimetres per second, although the common SI units for hydraulic conductivity are metres per second.
1.4 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.
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Designation: D 5856 – 95 (Reapproved 2002)
Standard Test Method for
Measurement of Hydraulic Conductivity of Porous Material
1
Using a Rigid-Wall, Compaction-Mold Permeameter
This standard is issued under the fixed designation D 5856; 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 last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 4753 Specification for Evaluating, Selecting, and Speci-
fying Balances and Scales for Use in Soil, Rock, and
1.1 This test method covers laboratory measurement of the
2
Construction Materials
hydraulic conductivity (also referred to as coeffıcient of per-
D 5084 Test Method for Measurement of Hydraulic Con-
meability) of laboratory-compacted materials with a rigid-wall,
ductivity of Saturated Porous Materials Using a Flexible
compaction-mold permeameter.
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Wall Permeameter
1.2 This test method may be used with laboratory-
E 145 Specification for Gravity-Convection and Forced-
compacted specimens that have a hydraulic conductivity less
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−5
Ventilation Ovens
than or equal to 1 3 10 m/s. The hydraulic conductivity of
compacted materials that have hydraulic conductivities greater
3. Terminology
−5
than 1 3 10 m/s may be determined by Test Method D 2434.
3.1 Definitions of Terms Specific to This Standard:
1.3 The values stated in SI units are to be regarded as the
3.1.1 flux—quantity of flow per unit area per unit time.
standard, unless other units are specifically given. By tradition
3.1.2 hydraulic conductivity, k—the rate of discharge of
in U.S. practice, hydraulic conductivity is reported in centime-
water under laminar flow conditions through a unit cross-
tres per second, although the common SI units for hydraulic
sectional area of a porous medium under a unit hydraulic
conductivity are metres per second.
gradient and standard temperature conditions (20°C).
1.4 This standard does not purport to address all of the
3.1.2.1 Discussion—The term coeffıcient of permeability is
safety concerns, if any, associated with its use. It is the
often used instead of hydraulic conductivity, but hydraulic
responsibility of the user of this standard to establish appro-
conductivity is used exclusively in this test method. A more
priate safety and health practices and determine the applica-
complete discussion of the terminology associated with Dar-
bility of regulatory limitations prior to use.
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cy’s law is given in the literature .
2. Referenced Documents 3.1.3 pore volume of flow—the cumulative quantity of
outflow from a test specimen divided by the volume of pore
2.1 ASTM Standards:
space in the specimen.
D 653 Terminology Relating to Soil, Rock, and Contained
2
3.1.4 For definitions of other terms used in this test method
Fluids
see Terminology D 653.
D 698 Test Method for Laboratory Compaction Character-
3
istics of Soil Using Standard Effort (12 400 ft-lbf/ft (600
4. Significance and Use
3 2
KN-m/m ))
4.1 This test method applies to one-dimensional, laminar
D 854 Test Method for Specific Gravity of Soils Solids by
2 flow of water within laboratory-compacted, porous materials
Water Pycnometer
such as soil.
D 1557 Test Method for Laboratory Compaction Character-
3 4.2 The hydraulic conductivity of porous materials gener-
istics of Soil Using Modified Effort (56 000 ft-lbf/ft (2700
3 2
ally decreases with an increasing amount of air in the pores of
KN-m/m ))
the material. This test method applies to porous materials
D 2216 Method for Laboratory Determination of Water
2 containing little or no air. The test method is designed to
(Moisture) Content of Soil and Rock by Mass
minimize the amount of air in the test specimen. However, this
D 2434 Test Method for Permeability of Granular Soils
2 test method does not ensure complete saturation of the test
(Constant Head)
specimen with water. In cases where it is essential to saturate
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This test method is under the jurisdiction of ASTM Committee D18 on Soil and
3
Rock and is the direct responsibility of Subcommittee D18.04 on Hydrologic Annual Book of ASTM Standards, Vol 04.02.
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Properties of Soil and Rock. Olson, R. E., and Daniel, D. E., “Measurement of the Hydraulic Conductivity
Current edition approved Nov. 10, 1995. Published January 1996. of Fine-Grained Soils,” Symposium on Permeability and Groundwater Contaminant
2
Annual Book of ASTM Standards, Vol 04.08. Transport, ASTM STP 746, ASTM, 1981, pp. 18–64.
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