ASTM D6495/D6495M-18

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 ensure that the supplied GCL rolls meet accepted material specifications.  
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 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.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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.

General Information

• Status: Historical
• Publication Date: 31-Jan-2018
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.04 - Geosynthetic Clay Liners

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/D6495M − 18
Standard Guide for
Acceptance Testing Requirements for Geosynthetic Clay
1
Liners
This standard is issued under the fixed designation D6495/D6495M; 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 ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This guide covers guidelines for the acceptance testing
mendations issued by the World Trade Organization Technical
requirements for geosynthetic clay liner (GCL) materials,
Barriers to Trade (TBT) Committee.
describing types of tests, test methods, and recommended
verifications.
2. Referenced Documents
1.2 This guide is intended to aid purchasers, installers,
2
2.1 ASTM Standards:
contractors, owners, operators, designers, and agencies in
D792 Test Methods for Density and Specific Gravity (Rela-
establishing a minimum level of effort for product acceptance
tive Density) of Plastics by Displacement
testing and verification. This is intended to ensure that the
D882 Test Method for Tensile Properties of Thin Plastic
supplied GCL rolls meet accepted material specifications.
Sheeting
1.3 The values stated in either SI units or inch-pound units D1505 Test Method for Density of Plastics by the Density-
are to be regarded separately as standard. The values stated in
Gradient Technique
each system may not be exact equivalents; therefore, each D5199 Test Method for Measuring the Nominal Thickness
system shall be used independently of the other. Combining
of Geosynthetics
values from the two systems may result in non-conformance D5887/D5887M Test Method for Measurement of Index
with the standard.
Flux Through Saturated Geosynthetic Clay Liner Speci-
mens Using a Flexible Wall Permeameter
1.4 This guide offers an organized collection of information
D5888 Guide for Storage and Handling of Geosynthetic
or a series of options and does not recommend a specific
Clay Liners
course of action. This guide cannot replace education or
D5889/D5889M Practice for Quality Control of Geosyn-
experience and should be used in conjunction with professional
thetic Clay Liners
judgment. Not all aspects of this guide may be applicable in all
D5890 Test Method for Swell Index of Clay Mineral Com-
circumstances. This guide is not intended to represent or
ponent of Geosynthetic Clay Liners
replace the standard of care by which the adequacy of a given
D5891/D5891M Test Method for Fluid Loss of Clay Com-
professional service must be judged, nor should this guide be
ponent of Geosynthetic Clay Liners
applied without consideration of a project’s many unique
D5993 Test Method for Measuring Mass Per Unit of Geo-
aspects. The word “Standard” in the title of this guide means
synthetic Clay Liners
only that the guide has been approved through the ASTM
D5994/D5994M Test Method for Measuring CoreThickness
consensus process.
of Textured Geomembranes
1.5 This standard does not purport to address all of the
D6072/D6072M Practice for Obtaining Samples of Geosyn-
safety concerns, if any, associated with its use. It is the
thetic Clay Liners
responsibility of the user of this standard to establish appro-
D6243/D6243M Test Method for Determining the Internal
priate safety, health, and environmental practices and deter-
and Interface Shear Strength of Geosynthetic Clay Liner
mine the applicability of regulatory limitations prior to use.
by the Direct Shear Method
1.6 This international standard was developed in accor-
D6496/D6496M Test Method for Determining Average
dance with internationally recognized principles on standard-
Bonding Peel Strength Between Top and Bottom Layers
of Needle-Punched Geosynthetic Clay Liners
1
This guide is under the jurisdiction ofASTM Committee D35 on Geosynthetics
and is the direct responsibility of Subcommittee D35.04 on Geosynthetic Clay
2
Liners. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Feb. 1, 2018. Published March 2018. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1999. Last previous edition approved in 2015 as D6495/D6495M – 15. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/D6495_D6495M-18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6495/D6495M − 18
D6693/D6693M Test Method for Determining Tensile Prop- thetic creating a directional orientation; therefore, the direction
...

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: D6495/D6495M − 15 D6495/D6495M − 18
Standard Guide for
Acceptance Testing Requirements for Geosynthetic Clay
1
Liners
This standard is issued under the fixed designation D6495/D6495M; 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 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 assureensure that the supplied GCL
rolls meet accepted material specifications.
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 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.
1.4 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D882 Test Method for Tensile Properties of Thin Plastic Sheeting
D1505 Test Method for Density of Plastics by the Density-Gradient Technique
D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics
D5887D5887/D5887M Test Method for Measurement of Index Flux Through Saturated Geosynthetic Clay Liner Specimens
Using a Flexible Wall Permeameter
D5888 Guide for Storage and Handling of Geosynthetic Clay Liners
D5889D5889/D5889M Practice for Quality Control of Geosynthetic Clay Liners
D5890 Test Method for Swell Index of Clay Mineral Component of Geosynthetic Clay Liners
D5891D5891/D5891M Test Method for Fluid Loss of Clay Component of Geosynthetic Clay Liners
D5993 Test Method for Measuring Mass Per Unit of Geosynthetic Clay Liners
D5994/D5994M Test Method for Measuring Core Thickness of Textured Geomembranes
1
This guide is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.04 on Geosynthetic Clay Liners.
Current edition approved July 1, 2015Feb. 1, 2018. Published August 2015March 2018. Originally approved in 1999. Last previous edition approved in 20142015 as
D6495D6495/D6495M – 15.–14. DOI: 10.1520/D6495_D6495M-15.10.1520/D6495_D6495M-18.
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 ----------------------
D6495/D6495M − 18
D6072/D6072M Practice for Obtaining Samples of Geosynthetic Clay Liners
D6243/D6243M Test Method for Determ
...