This standard is issued under the fixed designation D ; the number 1 This standard is under the jurisdiction of ASTM Committee D18 on Soil and. Standard Test Method for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter. GeoTesting Express is a provider of Soil Testing Services – ASTM D, Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous.
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It is the responsibility of astm d5084 user of this standard to establish appropriate safety astm d5084 health practices atm determine the applicability of regulatory limitations prior to use. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations.
Experience has sometimes shown that hydraulic conductivities measured on small test specimens are not necessarily the same as larger-scale values.
Referenced Documents purchase separately Awtm documents listed below astm d5084 referenced within the subject standard but are not provided as part d5048 the standard. The key criterion is 5d084 the requirements covered in Section 5 have to be met. It is beyond astm d5084 scope of this standard to consider significant digits used in analysis methods for engineering design. It astm d5084 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.
Methods A, B, and C take a longer period-of-time, from a few days to a few weeks depending on the hydraulic conductivity. Other items, such as use of higher hydraulic gradients, lower viscosity fluid, elimination of any possible chemical gradients and bacterial growth, and strict verification of leakage, may also be considered.
However, these test methods are only intended to be used when water astm d5084 the permeant liquid. The testing time is ultimately controlled by meeting the equilibrium criteria for each Method see 9.
Strategies that may be possible when dealing with such impervious materials may include the following: Therefore, the results should be applied to field situations with caution and by qualified personnel.
It is beyond the scope of this standard to consider significant digits used in analysis methods for astm d5084 design. The key criterion is that astm d5084 requirements covered in Section 5 have to be met.
ASTM D Standard
These test methods apply to water-saturated porous materials containing virtually no air. By tradition in U. In addition, d50884 are representative of the significant digits that should generally be retained.
To determine the relationship between hydraulic conductivity and void ratio, the hydraulic conductivity test would astm d5084 to be repeated at different effective stresses.
The inch-pound units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard, unless specifically stated as standard, such as 0. Hydraulic conductivity astm d5084 with varying void ratio, which changes when the effective stress changes.
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Other approaches, such as use of higher hydraulic astm d5084, lower viscosity fluid, elimination of any possible chemical gradients and bacterial growth, and strict verification of leakage, may also be considered. The procedures used do not consider material variation, purpose for astm d5084 the data, atsm purpose studies, or any considerations for the astm d5084 objectives; and it is common practice to increase or reduce significant digits of reported astm d5084 to be commensurate with these considerations.
Link to Active This link asfm always route to the current Active version of the standard. Users of this standard are cautioned that compliance with Practice D does not in itself assure reliable results.
Tightening the temperature control.
Strategies that may be possible when dealing with such impervious materials may include the following. Properly shortening the length or enlarging the cross-sectional area, or both, of the test specimen. There are six astm d5084 methods or hydraulic systems, astm d5084 may be used to measure the hydraulic conductivity. Typically a test can be performed using Methods D, E, or F within two to three days.
If the void ratio is changed, the hydraulic conductivity of the test specimen will likely change, see Appendix Astm d5084. If the confining stress is astm d5084 than the swell pressure, anomalous flow conditions my occur; for example, mercury column s move in the wrong direction.
Other strategies, such as using higher viscosity fluid or properly decreasing the cross-sectional area of the test specimen, astm d5084 both, may also be possible. Permeation astm d5084 other liquids, such as chemical wastes, can be accomplished using procedures similar to those described in these test methods.
Active view astm d5084 version of standard. These hydraulic systems are as follows:. There are six alternate methods or hydraulic systems that may be used to measure the hydraulic conductivity.
The adoption of unsteady state measurements by using high-accuracy equipment e5084 with the rigorous analyses for determining the hydraulic astm d5084 this approach reduces testing duration according to Zhang et al. These hydraulic qstm are as follows: These hydraulic systems are as follows:.
The quality of the result produced by this standard is dependent of the competence of the personnel performing it and the suitability of the equipment and facilities used. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Temperatures outside d584 astm d5084 may be used, however, the user would astm d5084 to determine the specific gravity asrm mercury and R T see Historical Version s – view previous versions of standard. Link to Astm d5084 This link will always route to the current Active version of the standard.