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ASTM D5262-06

(Test Method)

Standard Test Method for Evaluating the Unconfined Tension Creep Rupture Behavior of Geosynthetics

Standard Test Method for Evaluating the Unconfined Tension Creep Rupture Behavior of Geosynthetics

SCOPE
1.1 This test method is intended for use in determining the unconfined tension creep and creep rupture behavior of geosynthetics at constant temperature when subjected to a sustained tensile loading. This test method is applicable to all geosynthetics.
1.2 The test method measures total elongation of the geosynthetic test specimen, from the time of loading, while being maintained at a constant temperature. It includes procedures for measuring the tension creep and creep rupture behavior at constant temperature of conditioned geosynthetics as well as directions for calculating tension creep and creep rupture curves.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.

General Information

Status
Historical
Publication Date
31-Jul-2006
ICS
59.080.70 - Geotextiles
Technical Committee
D35 - Geosynthetics
Drafting Committee
D35.02 - Endurance Properties
Current Stage
Ref Project

Relations

Replaces
ASTM D5262-04 - Standard Test Method for Evaluating the Unconfined Tension Creep Behavior of Geosynthetics
Effective Date
01-Aug-2006
Replaced By
ASTM D5262-07 - Standard Test Method for Evaluating the Unconfined Tension Creep and Creep Rupture Behavior of Geosynthetics
Effective Date
01-Jun-2007
Referred By
ASTM D4439-23b - Standard Terminology for Geosynthetics
Effective Date
01-Aug-2006
Referred By
ASTM D6455-11(2018) - Standard Guide for the Selection of Test Methods for Prefabricated Bituminous Geomembranes (PBGMs)
Effective Date
01-Aug-2006
Referred By
ASTM D8269-21 - Standard Guide for the Use of Geocells in Geotechnical and Roadway Projects
Effective Date
01-Aug-2006
Referred By
ASTM D6637/D6637M-15 - Standard Test Method for Determining Tensile Properties of Geogrids by the Single or Multi-Rib Tensile Method
Effective Date
01-Aug-2006
Referred By
ASTM E2777-20 - Standard Guide for Vegetative (Green) Roof Systems
Effective Date
01-Aug-2006
Referred By
ASTM D6992-16(2023) - Standard Test Method for Accelerated Tensile Creep and Creep-Rupture of Geosynthetic Materials Based on Time-Temperature Superposition Using the Stepped Isothermal Method
Effective Date
01-Aug-2006
Referred By
ASTM D7737/D7737M-15(2023) - Standard Test Method for Individual Geogrid Junction Strength
Effective Date
01-Aug-2006
Referred By
ASTM D8105-18 - Standard Guide for Use and Application of Geosynthetic Reinforcement Reduction Factor Test Results
Effective Date
01-Aug-2006
Referred By
ASTM D7361-07(2023) - Standard Test Method for Accelerated Compressive Creep of Geosynthetic Materials Based on Time-Temperature Superposition Using the Stepped Isothermal Method
Effective Date
01-Aug-2006
Referred By
ASTM D5819-22 - Standard Guide for Selecting Test Methods for Experimental Evaluation of Geosynthetic Durability
Effective Date
01-Aug-2006

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ASTM D5262-06 - Standard Test Method for Evaluating the Unconfined Tension Creep Rupture Behavior of GeosyntheticsASTM D5262-06 - Standard Test Method for Evaluating the Unconfined Tension Creep Rupture Behavior of Geosynthetics
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ASTM D5262-06 - Standard Test Method for Evaluating the Unconfined Tension Creep Rupture Behavior of Geosynthetics
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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: D 5262 – 06
Standard Test Method for
Evaluating the Unconfined Tension Creep and Creep
1
Rupture Behavior of Geosynthetics
This standard is issued under the fixed designation D5262; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope D4595 Test Method for Tensile Properties of Geotextiles
by the Wide-Width Strip Method
1.1 This test method is intended for use in determining the
E6 Terminology Relating to Methods of Mechanical Test-
unconfined tension creep and creep rupture behavior of geo-
ing
synthetics at constant temperature when subjected to a sus-
tained tensile loading. This test method is applicable to all
3. Terminology
geosynthetics.
3.1 Definitions—For definitions of many terms used in this
1.2 The test method measures total elongation of the geo-
test method, refer to Terminologies D123, D4439 andE6.
synthetic test specimen, from the time of loading, while being
3.2 Definitions of Terms Specific to This Standard:
maintained at a constant temperature. It includes procedures
3.2.1 atmosphere for testing geosynthetics, n—air main-
for measuring the tension creep and creep rupture behavior at
tained at a relative humidity between 50 and 70% and the test
constant temperature of conditioned geosynthetics as well as
(Section 10.2).
directions for calculating tension creep and creep rupture
3.2.2 creep, n—the time-dependent increase in accumula-
curves.
tive strain in a material resulting from an applied constant
1.3 The values stated in SI units are to be regarded as the
force.
standard. The values given in parentheses are for information
3.2.3 design load, n—the load at which the geosynthetic is
only.
required to operate in order to perform its intended function.
1.4 This standard does not purport to address all of the
3.2.4 failure, n—an arbitrary point at which a material
safety concerns, if any, associated with its use. It is the
ceases to be functionally capable of its intended use.
responsibility of the user of this standard to establish appro-
3.2.5 geogrid, n—a geosynthetic formed by a regular net-
priate safety and health practices and determine the applica-
work of integrally connected elements with apertures greater
bility of regulatory limitations prior to use.
1
than 6.35 mm ( ⁄4 in.) to allow interlocking with surrounding
2. Referenced Documents soil, rock, earth, and other surrounding materials to function
2 primarily as reinforcement.
2.1 ASTM Standards:
3.2.6 geomembrane, n—an essentially impermeable geo-
D123 Terminology Relating to Textiles
synthetic composed of one or more synthetic sheets.
D1776 Practice for Conditioning and Testing Textiles
3.2.6.1 Discussion—In geotechnical engineering, essen-
D4439 Terminology for Geosynthetics
tially impermeable means that no measurable liquid flows
D4491 Test Methods forWater Permeability of Geotextiles
through a geosynthetic when tested in accordance with Test
by Permittivity
Methods D4491.
3.2.7 geosynthetic, n—a planar product manufactured from
polymeric material used with soil, rock, earth, or other geo-
1
This test method is under the jurisdiction of ASTM Committee D35 on
technical engineering-related material as an integral part of a
Geosynthetics and is the direct responsibility of Subcommittee D35.02 on Endur-
man-made project, structure, or system.
ance Properties.
3.2.8 geotextile, n—a permeable geosynthetic comprised
Current edition approvedAugust 1, 2006. Published November 2006. Originally
approved in 1992. Last previous edition approved in 2004 as D5262–04.
solely of textiles.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.8.1 Discussion—Current manufacturing techniques pro-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
duce nonwoven fabrics, knitted (non-tubular) fabrics, and
Standardsvolumeinformation,refertothestandards’sDocumentSummarypageon
the ASTM website. woven fabrics.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D5262–06
3.2.9 index test, n—a test procedure that may contain a damage of the test specimen within or at the faces of the
knownbias,butthatmaybeusedtoestablishanorderforaset clamps. The clamps and clamping technique shall be designed
of specimens with respect to the property being measured. to minimize eccentric loading of the specimen. A swivel or
3.2.10 rate of creep, n—theslopeofthecreep-timecurveat universal joint shall be used on one of the clamps at the end of
a given time. the specimen. It is recomm
...

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5.1 The determination of the tensile force-elongation values of geogrids provides index property values. This test method shall be used for quality control and acceptance testing of commercial shipments of geogrids.  
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5.1 The increased use of geomembranes as barrier materials to restrict liquid or gas movement, and the common use of dual-track seams in joining these sheets, has created a need for a standard nondestructive test by which the quality of the seams can be assessed for continuity and watertightness. The test is not intended to provide any indication of the physical strength of the seam.  
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1.1 This practice covers a nondestructive evaluation of the continuity of parallel geomembrane seams separated by an unwelded air channel. The unwelded air channel between the two distinct seamed regions is sealed and inflated with air to a predetermined pressure. Long lengths of seam can be evaluated by this practice more quickly than by other common nondestructive tests.  
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4.1 The use of reinforced geomembranes as barrier materials has created a need for a standard test method to evaluate the quality of seams produced by thermo-fusion methods. This test method is used for quality control purposes and is intended to provide quality control and quality assurance personnel with data to evaluate seam quality.  
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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 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.  
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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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1.1 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 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.  
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ASTM D7006-23(Practice)
Standard Practice for Ultrasonic Testing of Geomembranes

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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.  
5.2 Wave velocity may be established for particular geomembranes (for specific polymer type, specific formulation, specific density). Relationships may be established between velocity and both density and tensile properties of geomembranes. An example of the use of ultrasound for determining density of polyethylene is presented in Test Method D4883. Velocity measurements may be used to determine thickness of geomembranes (1, 2).4 Travel time and amplitude of transmitted waves may be used to assess the condition of geomembranes and to identify defects in geomembranes including surface defects (for example, scratches, cuts), inner defects (for example, discontinuities within geomembranes), and defects that penetrate the entire thickness of geomembranes (for example, pinholes) (3, 4). Bonding between geomembrane sheets can be evaluated using travel time, velocity, or impedance measurements for seam assessment (5-10). Examples of the use of ultrasonic testing for determining the integrity of field and factory seams through travel time and velocity measurements (resulting in thickness measurements) are presented in Practices D4437 and D4545, respectively. An ultrasonic testing device is routinely used for evaluating seams in prefabricated bituminous geomembranes in the field (11). Integrity of geomembranes may be monitored in time using ultrasonic measurements.
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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.  
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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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ASTM D6992-16(2023)(Test Method)
Standard Test Method for Accelerated Tensile Creep and Creep-Rupture of Geosynthetic Materials Based on Time-Temperature Superposition Using the Stepped Isothermal Method

SIGNIFICANCE AND USE
5.1 Use of the Stepped Isothermal Method decreases the time required for creep to occur and the obtaining of the associated data.  
5.2 The statements set forth in 1.6 are very important in the context of significance and use, as well as scope of the standard.  
5.3 Creep test data are used to calculate the creep modulus of materials as a function of time. These data are then used to predict the long-term creep deformation expected of geosynthetics used in reinforcement applications.
Note 1: Currently, SIM testing has focused mainly on woven and knitted geogrids and woven geotextiles made from polyester, aramid, polyaramid, poly-vinyl alcohol (PVA), and polypropylene yarns and narrow strips. Additional correlation studies on other materials are needed.  
5.4 Creep-rupture test data are used to develop a regression line relating creep stress to rupture time. These results predict the long-term rupture strength expected for geosynthetics in reinforcement applications.  
5.5 Tensile testing is used to establish the ultimate tensile strength (TULT) of a material and to determine elastic stress, strain, and variations thereof for SIM tests.  
5.6 Ramp and Hold (R+H) testing is done to establish the range of creep strains experienced in the brief period of very rapid response following the peak of the load ramp.
SCOPE
1.1 This test method covers accelerated testing for tensile creep, and tensile creep-rupture properties using the Stepped Isothermal Method (SIM).  
1.2 The test method is focused on geosynthetic reinforcement materials such as yarns, ribs of geogrids, or narrow geotextile specimens.  
1.3 The SIM tests are laterally unconfined tests based on time-temperature superposition procedures.  
1.4 Tensile tests are to be completed before SIM tests and the results are used to determine the stress levels for subsequent SIM tests defined in terms of the percentage of Ultimate Tensile Strength (TULT). Additionally, the tensile test can be designed to provide estimates of the initial elastic strain distributions appropriate for the SIM results.  
1.5 Ramp and Hold (R+H) tests may be completed in conjunction with SIM tests. They are designed to provide additional estimates of the initial elastic and initial rapid creep strain levels appropriate for the SIM results.  
1.6 This method can be used to establish the sustained load creep and creep-rupture characteristics of a geosynthetic. Results of this method are to be used to augment results of Test Method D5262 and may not be used as the sole basis for determination of long-term creep and creep-rupture behavior of geosynthetic material.  
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.8 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.  
1.9 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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ASTM
ASTM D5322-23(Practice)
Standard Practice for Laboratory Immersion Procedures for Evaluating the Chemical Resistance of Geosynthetics to Liquids

SIGNIFICANCE AND USE
4.1 This practice provides a standard immersion procedure for investigating the chemical resistance of a geosynthetic to a liquid waste, leachate, or chemical in a laboratory environment. The conditions specified in this practice are intended both to provide a basis of standardization and to serve as a guide for those wishing to compare or investigate the chemical resistance of a geosynthetic material(s) in a laboratory environment. Practice D5496 can be used should the user need to assess the performance of a geosynthetic in field conditions.  
4.2 This practice is not intended to establish, by itself, the behavior of geosynthetics when exposed to liquids. Such behavior, referred to as chemical resistance, can be defined only in terms of specific chemical solutions and methods of testing and evaluation criteria selected by the user.
SCOPE
1.1 This practice covers laboratory immersion procedures for the testing of geosynthetics for chemical resistance to liquid wastes, prepared chemical solutions, and leachates derived from solid wastes.  
1.2 This standard is not applicable to some geosynthetics such as geosynthetic clay liners (GCLs), because of their composite nature requiring a confining pressure during immersion. However, individual geosynthetic components of the GCL can be tested.  
1.3 This standard was originally developed to supplement and expand EPA 9090 to include all geosynthetics. EPA 9090 has not been updated since 1992.  
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazards statements, see Section 7.  
1.6 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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    English language
    sale 15% off