ASTM D6495-02

Standard Guide for Acceptance Testing Requirements for Geosynthetic Clay Liners

ABSTRACT
This guide covers guidelines for the acceptance testing requirements for geosynthetic clay liner (GCL) materials, describing types of tests, test methods, and recommended verifications and is intended to aid purchasers, installers, contractors, owners, operators, designers and agencies in establishing a minimum level of effort for product acceptance testing and verification. This guide suggests the types of tests, the methods of the testing, and verification requirements for acceptance testing of GCL materials. It should be recognized that parties, organizations or representatives may perform additional tests and/or at other frequencies than required in this standard guide. In this case, the project-specific acceptance plan will then take precedence over this standard guide. Different properties such as clay mass per unit area, swell index, fluid loss, grab tensile strength, tensile strength, density and thickness of geomembrane support, and bonding peel strength shall be determined by subjecting the material to different test methods.
SCOPE
1.1 This guide covers guidelines for the acceptance testing requirements for geosynthetic clay liner (GCL) materials, describing types of tests, test methods, and recommended verifications.
1.2 This guide is intended to aid purchasers, installers, contractors, owners, operators, designers and agencies in establishing a minimum level of effort for product acceptance testing and verification. This is intended to assure that the supplied GCL rolls meet accepted material specifications.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 This guide offers an organized collection of information or a series of options and does not recommend a specific course of action. This guide cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this guide may be applicable in all circumstances. This guide is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this guide be applied without consideration of a project's many unique aspects. The word "Standard" in the title of this guide means only that the guide has been approved through the ASTM consensus process.
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: 09-Jun-2002
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.04 - Geosynthetic Clay Liners

Relations

• Replaces: ASTM D6495-01 - Standard Guide for Acceptance Testing Requirements for Geosynthetic Clay Liners
• Effective Date: 10-Jun-2002
• Replaced By: ASTM D6495-09 - Standard Guide for Acceptance Testing Requirements for Geosynthetic Clay Liners
• Effective Date: 01-Jun-2009

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:D6495–02
Standard Guide for
Acceptance Testing Requirements for Geosynthetic Clay
1
Liners
This standard is issued under the fixed designation D 6495; 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 D 792 TestMethodsforDensityandSpecificGravity(Rela-
2
tive Density) and Density of Plastics by Displacement
1.1 This guide covers guidelines for the acceptance testing
D 4595 Test Method for Tensile Properties of Geotextiles
requirements for geosynthetic clay liner (GCL) materials,
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by the Wide-Width Strip Method
describing types of tests, test methods, and recommended
D 4632 Test Method for Grab Breaking Load and Elonga-
verifications.
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tion of Geotextiles
1.2 This guide is intended to aid purchasers, installers,
D 5199 Test Method for Measuring Nominal Thickness of
contractors, owners, operators, designers and agencies in
3
Geosynthetics
establishing a minimum level of effort for product acceptance
D 5887 Test Method for Measurement of Index Flux
testing and verification. This is intended to assure that the
Through Saturated Geosynthetic Clay Liner Specimens
supplied GCL rolls meet accepted material specifications.
3
and Handling of Geosynthetic Clay Liners
1.3 The values stated in SI units are to be regarded as the
D 5888 Guide for Storage and Handling of Geosynthetic
standard.
3
Clay Liners
1.4 This guide offers an organized collection of information
D 5889 Practice for Manufacturing Quality Control Of
or a series of options and does not recommend a specific
3
Geosynthetic Clay Liners
course of action. This guide cannot replace education or
D 5890 Test Method for Swell Index of Clay Mineral
experience and should be used in conjunction with professional
3
Component of Geosynthetic Clay Liners
judgment. Not all aspects of this guide may be applicable in all
D 5891 Test Method for Fluid Loss of Clay Component of
circumstances. This guide is not intended to represent or
3
Geosynthetic Clay Liners
replace the standard of care by which the adequacy of a given
D 5993 Test Method for Measuring the Mass per UnitArea
professional service must be judged, nor should this guide be
3
of Geosynthetic Clay Liners
applied without consideration of a project’s many unique
D 6072 Guide for obtaining Samples of Geosynthetic Clay
aspects. The word “Standard” in the title of this guide means
3
Liners
only that the guide has been approved through the ASTM
D 6243 Test Method for Determining the Internal and
consensus process.
Interface Shear Resistance of Geosynthetic Clay Liner by
1.5 This standard does not purport to address all of the
3
the Direct Shear Method
safety concerns, if any, associated with its use. It is the
D 6496 TestMethodforDeterminingAverageBondingPeel
responsibility of the user of this standard to establish appro-
Strength Between the Top and Bottom Layers of Needle-
priate safety and health practices and determine the applica-
3
Punched Geosynthetic Clay Liners
bility of regulatory limitations prior to use.
2.2 United States EPA Document:
2. Referenced Documents EPA/600//R-93/182 Technical Guidance Document Quality
Assurance and Quality Control for Waste Containment
2.1 ASTM Standards:
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2
Facilities
D 638 Test Method for Tensile Properties of Plastics
D 882 Test Methods for Tensile Properties of Thin Plastic
3. Terminology
2
Sheeting
3.1 Geosynthetic Definitions:
3.1.1 geomembrane, n—an essentially impermeable geo-
1
This guide is under the jurisdiction ofASTM Committee D35 on Geosynthetics synthetic composed of one or more synthetic sheets.
and is the direct responsibility of Subcommittee D35.04 on Geosynthetic Clay
Liners.
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Current edition approved June 10, 2002. Published September 2002. Originally Annual Book of ASTM Standards, Vol 04.13.
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published as D 6495–99. Last previous edition D 6495–01. Available from Superintendent of Documents, US Government Printing Office,
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Annual Book of ASTM Standards, Vol 08.01. Washington, DC 20402.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6495–02
3.1.2 geosynthetic clay liner, n—a manufactured hydraulic 5. Procedure
barrier consisting of clay bonded to a layer or layers of
5.1 The clay components, geosynthetic components and
geosynthetics.
finished GCLs are typically tested during MQC (Practice D
3.1.3 geotextile, n—a permeable geosynthetic comprised
5889) and are typically documented by means of a letter of
solely of textiles
certification and/or summarized MQC test data. These compo-
3.2 Organizational Definiti
...