ASTM D6574/D6574M-13

Standard Test Method for Determining the (In-Plane) Hydraulic Transmissivity of a Geosynthetic by Radial Flow

SIGNIFICANCE AND USE
5.1 This test method is an index test to estimate and compare the in-plane hydraulic transmissivity of one or several candidate geosynthetics under specific gradient and stress conditions.  
5.2 This test method may be used for acceptance testing of commercial shipments of geosynthetics, but caution is advised since information about between-laboratory precision is incomplete. Comparative tests as directed in 5.2.1 are advisable.  
5.2.1 In case of a dispute arising from differences in reported test results when using this procedure for acceptance of commercial shipments, the purchaser and the supplier should first confirm that the tests have been conducted using comparable test parameters including specimen conditioning, normal stress, hydraulic system gradient, etc. Comparative tests then should be conducted to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are formed from a lot of the material in question. The test specimens should be assigned randomly to each laboratory for testing. The average results from the two laboratories should be compared using the Student's t-test for unpaired data and an acceptable probability level chosen by the two parties before testing is begun. If bias is found, either its cause must be found and corrected or the purchaser and supplier must agree to interpret future test results in light of the known bias.
SCOPE
1.1 This test method covers the procedure for determining the in-plane transmissivity of geosynthetics under varying normal compressive stresses using a radial flow apparatus. The test is intended to be an index test used primarily for geotextiles, although other products composed of geotextiles and geotextile-type materials may be suitable for testing with this test method.  
1.2 This test method is based on the assumption that the transmissivity of the geosynthetic is independent of orientation of the flow and is therefore limited to geosynthetics that have similar transmissivity in all directions and should not be used for materials with oriented flow behavior.  
1.3 This test method has been developed specifically for geosynthetics that have transmissivity values on the order of or less than 2 × 10−4 m2/s. Consider using Test Method D4716 for geosynthetics with transmissivity values higher than 2 × 10−4 m2/s.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.5 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.

General Information

• Status: Historical
• Publication Date: 30-Jun-2013
• ICS: 59.080.70 - Geotextiles
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.03 - Permeability and Filtration

Relations

• Replaces: ASTM D6574-00(2011) - Standard Test Method for Determining the (In-Plane) Hydraulic Transmissivity of a Geosynthetic by Radial Flow
• Effective Date: 01-Jul-2013
• Referred By: ASTM D4716/D4716M-22 - Standard Test Method for Determining the (In-plane) Flow Rate per Unit Width and Hydraulic Transmissivity of a Geosynthetic Using a Constant Head
• Effective Date: 01-Jul-2013

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6574/D6574M − 13
StandardTest Method for
Determining the (In-Plane) Hydraulic Transmissivity of a
1
Geosynthetic by Radial Flow
This standard is issued under the fixed designation D6574/D6574M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method covers the procedure for determining
D4354Practice for Sampling of Geosynthetics and Rolled
the in-plane transmissivity of geosynthetics under varying
Erosion Control Products(RECPs) for Testing
normal compressive stresses using a radial flow apparatus.The
D4439Terminology for Geosynthetics
test is intended to be an index test used primarily for
D4716Test Method for Determining the (In-plane) Flow
geotextiles, although other products composed of geotextiles
Rate per Unit Width and Hydraulic Transmissivity of a
and geotextile-type materials may be suitable for testing with
Geosynthetic Using a Constant Head
this test method.
D5092Practice for Design and Installation of GroundWater
1.2 This test method is based on the assumption that the Monitoring Wells
transmissivityofthegeosyntheticisindependentoforientation
of the flow and is therefore limited to geosynthetics that have 3. Terminology
similar transmissivity in all directions and should not be used
3.1 For definitions of terms relating to geosynthetics, refer
for materials with oriented flow behavior.
to Terminology D4439.
1.3 This test method has been developed specifically for
3.2 Definitions:
geosyntheticsthathavetransmissivityvaluesontheorderofor
3.2.1 geosynthetic, n—a planar product manufactured from
−4 2
lessthan2×10 m /s.ConsiderusingTestMethodD4716for polymeric material used with soil, rock, earth, or other geo-
−4
geosynthetics with transmissivity values higher than 2 × 10 technical engineering related material as an integral part of a
2
man-made project, structure, or system. D4439
m /s.
3.2.2 geotextile, n—a permeable geosynthetic comprised
1.4 The values stated in either SI units or inch-pound units
solely of textiles. D4439
are to be regarded separately as standard. The values stated in
3.2.3 gravity flow, n—flow in a direction parallel to the
each system may not be exact equivalents; therefore, each
planeofageosyntheticdrivenpredominantlybyadifferencein
system shall be used independently of the other. Combining
elevation between the inlet and outflow points of a specimen.
values from the two systems may result in non-conformance
D4439
with the standard.
3.2.3.1 Discussion—The pressure at the outflow is consid-
1.5 This standard does not purport to address all of the
ered to be atmospheric.
safety concerns, if any, associated with its use. It is the
3.2.4 head (static), n—the height above a standard datum of
responsibility of the user of this standard to establish appro-
the surface of a column of water (or other liquid) that can be
priate safety and health practices and determine the applica-
supported by a static pressure at a given point. The static head
bility of regulatory limitations prior to use.
is the sum of the elevation head and the pressure head. D5092
3.2.5 hydraulic gradient, i, s (D), n—the loss of hydraulic
head per unit distance of flow, dH/dL. D4439
3.2.5.1 Discussion—The gradient is not constant from point
to point in the direction of flow in the radial flow test. The
1
This test method is under the jurisdiction of ASTM Committee D35 on
Geosynthetics and is the direct responsibility of Subcommittee D35.03 on Perme-
2
ability and Filtration. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
CurrenteditionapprovedJuly1,2013.PublishedJuly2013.Originallyapproved contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
in 2000. Last previous edition approved in 2011 as D6574–00(2011). DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6574_D6574M-13. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6574/D6574M − 13
gradient (mathematically) varies with the inverse of the radial 5.2.1 In case of a dispute arising from differences in
distance from the center. reported test results when using this procedure for acceptance
2 −1
of commercial shipments, the purchaser and the supplier
3.2.6 hydraulic transmissivity, θ (L T ), n—for a
should first confirm that the tests have been conducted using
geosynthetic, the volumetric flow rate per unit width of
comparable test parameters including speci
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6574 − 00 (Reapproved 2011) D6574/D6574M − 13
Standard Test Method for
Determining the (In-Plane) Hydraulic Transmissivity of a
1
Geosynthetic by Radial Flow
This standard is issued under the fixed designation D6574;D6574/D6574M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the procedure for determining the in-plane transmissivity of geosynthetics under varying normal
compressive stresses using a radial flow apparatus. The test is intended to be an index test used primarily for geotextiles, although
other products composed of geotextiles and geotextile-type materials may be suitable for testing with this test method.
1.2 This test method is based on the assumption that the transmissivity of the geosynthetic is independent of orientation of the
flow and is therefore limited to geosynthetics that have similar transmissivity in all directions and should not be used for materials
with oriented flow behavior.
1.3 This test method has been developed specifically for geosynthetics that have transmissivity values on the order of or less
−4 2 −4 2
than 2 × 10 m /s. Consider using Test Method D4716 for geosynthetics with transmissivity values higher than 2 × 10 m /s.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values given in
parentheses are for information only. stated in each system may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5 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
2.1 ASTM Standards:
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products(RECPs) for Testing
D4439 Terminology for Geosynthetics
D4491 Test Methods for Water Permeability of Geotextiles by Permittivity
D4716 Test Method for Determining the (In-plane) Flow Rate per Unit Width and Hydraulic Transmissivity of a Geosynthetic
Using a Constant Head
D5092 Practice for Design and Installation of Ground Water Monitoring Wells
3. Terminology
3.1 For definitions of terms relating to geosynthetics, refer to Terminology D4439.
3.2 Definitions:
3.2.1 geosynthetic, n—a planar product manufactured from polymeric material used with soil, rock, earth, or other geotechnical
engineering related material as an integral part of a man-made project, structure, or system. D4439
3.2.2 geotextile, n—a permeable geosynthetic comprised solely of textiles. D4439
3.2.3 gravity flow, n—flow in a direction parallel to the plane of a geosynthetic driven predominantly by a difference in elevation
between the inlet and outflow points of a specimen. D4439
1
This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.03 on Permeability and
Filtration.
Current edition approved June 1, 2011July 1, 2013. Published July 2011July 2013. Originally approved in 2000. Last previous edition approved in 20062011 as
D6574 – 00(2006).(2011). DOI: 10.1520/D6574-00R11.10.1520/D6574_D6574M-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6574/D6574M − 13
3.2.3.1 Discussion—
The pressure at the outflow is considered to be atmospheric.
3.2.4 head (static), n—the height above a standard datum of the surface of a column of water (or other liquid) that can be
supported by a static pressure at a given point. The static head is the sum of the elevation head and the pressure head. D5092
3.2.5 hydraulic gradient, i, s (D), n—the loss of hydraulic head per unit distance of flow, dH/dL. D4439
3.2.5.1 Discussion—
The gradient is not constant from point to poi
...