ASTM D5856-95(2002) - 10.11.1995
 
1. 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.

 
2. Referenced Documents

D4753-25

Standard Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction Materials Testing

E145-19(2024)

Standard Specification for Gravity-Convection and Forced-Ventilation Ovens

D2434-26

Standard Test Methods for Laboratory Measurement of Hydraulic Conductivity of Coarse-Grained Soils

D2216-19

Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass

D698-12(2021)

Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft3 (600 kN-m/m3))

D854-23

Standard Test Methods for Specific Gravity of Soil Solids by the Water Displacement Method

D5084-24

Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter

D3740-26

Standard Practice for Minimum Requirements for Agencies Engaged in Testing of Soil and Rock as Used in Engineering Design and Construction

D1557-12(2021)

Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3))

D653-26a

Standard Terminology Relating to Soil, Rock, and Contained Fluids (Includes all amendments and changes 6/15/2026).