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ASTM D5884-99

(Test Method)

Standard Test Method for Determining Tearing Strength of Internally Reinforced Geomembranes

Standard Test Method for Determining Tearing Strength of Internally Reinforced Geomembranes

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1.1 This test method covers a uniform procedure for determining the tear strength of flexible geomembranes internally reinforced with a textile, using the tongue tear method.  
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.  
1.3 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
09-Jun-2001
ICS
59.080.70 - Geotextiles
Technical Committee
D35 - Geosynthetics
Drafting Committee
D35.10 - Geomembranes
Current Stage
Ref Project

Relations

Replaced By
ASTM D5884-01 - Standard Test Method for Determining Tearing Strength of Internally Reinforced Geomembranes
Effective Date
10-Jun-2001
Referred By
ASTM D7465/D7465M-15(2023) - Standard Specification for Ethylene Propylene Diene Terpolymer (EPDM) Sheet Used In Geomembrane Applications
Effective Date
10-Jun-2001

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ASTM D5884-99 - Standard Test Method for Determining Tearing Strength of Internally Reinforced GeomembranesASTM D5884-99 - Standard Test Method for Determining Tearing Strength of Internally Reinforced Geomembranes
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ASTM D5884-99 - Standard Test Method for Determining Tearing Strength of Internally Reinforced Geomembranes
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 5884 – 99
Standard Test Method for
Determining Tearing Strength of Internally Reinforced
Geomembranes
This standard is issued under the fixed designation D 5884; 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 and cross-machine directions is determined by measuring the
maximum load when cut specimens of specific dimensions are
1.1 This test method covers a uniform procedure for deter-
tested to failure, by tearing, at a fixed testing displacement rate.
mining the tear strength of flexible geomembranes internally
reinforced with a textile, using the tongue tear method.
5. Significance and Use
1.2 The values stated in SI units are to be regarded as the
5.1 Since tear resistance may be affected to a large degree
standard. The inch-pound units given in parentheses are for
by mechanical fibering of the membrane under stress, as well
information only.
as by stress distribution, strain rate, and size of specimen, the
1.3 This standard does not purport to address all of the
results obtained in a tear resistance test can only be regarded as
safety concerns, if any, associated with its use. It is the
a measure of the resistance under the conditions of that
responsibility of the user of this standard to establish appro-
particular test and not necessarily as having any direct relation
priate safety and health practices and determine the applica-
to service value. This test method measures the force required
bility of regulatory limitations prior to use.
to tear a reinforced geomembrane along a reasonably defined
2. Referenced Documents course such as that the tear propagates across the width of the
specimen. The values may vary between types of reinforce-
2.1 ASTM Standards:
ment used within a geomembrane.
D 4354 Practice for Sampling of Geosynthetics for Testing
2 5.2 The tongue tear method is useful for estimating the
D 4439 Terminology for Geosynthetics
relative tear resistance of different reinforcing textiles or
D 4533 Test Method for Trapezoid Tearing Strength of
different directions in the same reinforcing textiles.
Geotextiles
5.3 Disputes—In case of a dispute arising from differences
3. Terminology in reported test results when using this test method for
acceptance testing of commercial shipments, the purchaser and
3.1 Definitions of Terms Specific to This Standard:
the supplier should conduct comparative tests to determine if
3.1.1 atmosphere for testing geosynthetics, n—air main-
there is a statistical difference between their laboratories.
tained at a relative humidity between 50 to 70 % and a
temperature of 21 6 2°C (70 6 4°F). (See Terminology
6. Apparatus
D 4439.)
6.1 The machine shall consist of three main parts:
3.1.2 geomembrane, n—an essentially impermeable geo-
6.1.1 Straining Mechanism—A machine wherein the speci-
synthetic composed of one or more synthetic sheets. (See
men is held between the two clamps and strained by a uniform
Terminology D 4439.)
movement of the pulling clamp shall be used. Unless otherwise
3.1.3 reinforced geomembrane—a geomembrane internally
specified in the material specification, the machine shall be
reinforced with a textile.
adjusted so that the pulling clamp shall have a uniform speed
3.1.4 tearing strength, (F, (F), kN), n—the force required
of 5 6 0.2 mm/s (12 6 0.5 in./min).
either to start or to continue or propagate a tear in a fabric
6.1.2 Clamps for Holding Specimen—The clamps for hold-
under specified conditions. (See Terminology D 4439 and Test
ing a reinforced flexible geomembrane specimen shall have
Method D 4533.)
metallic gripping surfaces sufficiently smooth, flat, and parallel
4. Summary of Test Method as to prevent the test specimen from slipping or moving
between the gripping surfaces when held under the pressure
4.1 The tensile tear strength of a membrane in both machine
normal to operation. The dimension of all gripping surfaces
shall measure 25 by 50 mm (1 by 2 in.) or more with the long
This test method is under the jurisdiction of ASTM Committee D-35 on
dimension perpendicular to this direction of application of the
Geosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomem-
load. All edges that might cause a cutting action shall be
branes.
Current edition approved Jan. 10, 1999. Published May 1999. Originally
rounded to a radius of not over 0.4 mm ( ⁄64 in.). The design of
published as D5884–95. Last previous edition D5884–95
the clamp shall be such that one gripping surface shall be an
Annual Book of ASTM Standards, Vol 04.09.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 5884
integral part of the rigid frame of the clamp while the other
shall be on a part hinged or swiveled to the movable member
of the clamp. The pressure between the gripping surfaces,
sufficient to clamp the specimen firmly before testing load is
applied and to prevent slippage during the progress of the test,
shall be secured by any suitably constructed mechanical device
operating on the movable member of the clamp. The distance
between the clamps at the start of the test shall be 75 mm (3
in.).
6.1.3 Load and Elongation Recording Mechanism(s)—
Calibrated dial, scale, or chart to indicate applied load and
elongation. Unless otherwise specified for load determination,
the machine shall be adjusted or set so that the load required to
tear the specimen will remain
...

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5.1 This practice covers test arrangements, measurement techniques, sampling methods, and calculations to be used for nondestructive evaluation of geomembranes using ultrasonic testing.  
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1.1 This practice provides a summary of equipment and procedures for ultrasonic testing of geomembranes using the pulse echo method.  
1.2 Ultrasonic wave propagation in solid materials is correlated to physical and mechanical properties and condition of the materials. In ultrasonic testing, two wave propagation characteristics are commonly determined: velocity (based on wave travel time measurements) and attenuation (based on wave amplitude measurements). Velocity of wave propagation is used to determine thickness, density, and elastic properties of materials. Attenuation of waves in solid materials is used to determine microstructural properties of the materials. In addition, frequency characteristics of waves are analyzed to investigate the properties of a test material. Travel time, amplitude, and frequency distribution measurements are used to assess the condition of materials to identify damage and defects in solid materials. Ultrasonic measurements are used to determine the nature of materials/media in contact with a test specimen as well. Measurements are conducted in the time-domain (time versus amplitude) or frequency-domain (frequency versus amplitude).  
1.3 Measurements of one or more ultrasonic wave transmission characteristics are made based on the requirements of the specific testing program.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Standard Test Method for Determining Tearing Strength of Internally Reinforced Geomembranes

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5.1 Since tear resistance may be affected to a large degree by mechanical fibering of the membrane under stress, as well as by stress distribution, strain rate, and size of specimen, the results obtained in a tear resistance test can only be regarded as a measure of the resistance under the conditions of that particular test and not necessarily as having any direct relation to service value. This test method measures the force required to tear a reinforced geomembrane along a reasonably defined course such as that the tear propagates across the width of the specimen. The values may vary between types of reinforcement used within a geomembrane.  
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1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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ASTM
ASTM D7466/D7466M-23(Test Method)
Standard Test Method for Measuring Asperity Height of Textured Geomembranes

SIGNIFICANCE AND USE
5.1 The asperity height is an index property used to quantify one of the physical attributes related to the surface roughness of textured geomembranes.  
5.2 This test method is applicable to all currently available textured geomembranes that are deployed as manufactured geomembrane sheets.
SCOPE
1.1 This test method covers a procedure to measure the asperity height of textured geomembranes.  
1.2 This test method does not provide for measurement of the spacing between the asperities nor of the complete profile of the textured surface.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    4 pages
    English language
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  • Standard
    4 pages
    English language
    sale 15% off