ASTM D7272-06(2018)

Standard Test Method for Determining the Integrity of Seams Used in Joining Geomembranes by Premanufactured Taped Methods

SIGNIFICANCE AND USE
4.1 Significance—With the increased use of geomembranes as a barrier material to restrict liquid migration from one location to another, a need has been created for a standard test method to evaluate the quality of geomembrane seams produced by tape methods. In the case of geomembranes, it has become evident that geomembrane seams can exhibit separation in the field under certain conditions. This is an index-type test method used for quality assurance and quality control purposes; it is also intended to provide the quality engineer with sufficient seam peel and shear data to evaluate seam quality.  
4.2 Use—Recording and reporting data, such as separation that occurs during the peel test and elongation during the shear test, will allow the quality assurance engineer to take measures necessary to ensure the repair of inferior seams during construction, and therefore, minimize the potential for seam separation while in service. The acceptable value of adhesion measured will, of course, vary from product to product as a result of different formulations and types of products. However, once a product is established, minimum values of separation force can be determined and agreed to by producer and consumer, and both can monitor the installation to ensure maintenance of the agreed-upon minimum value.
SCOPE
1.1 This test method describes destructive quality control and/or quality assurance tests to determine the integrity of seams produced using taped seaming methods. This test method presents the procedures used for determining the quality of taped seams subjected to both peel and shear tests. These test procedures are intended for nonreinforced and reinforced geomembranes.  
1.2 The types of tape seaming techniques used to construct geomembrane seams include the following:  
1.2.1 Inseam Tape—This technique requires the membrane to be overlapped a minimum distance. The top sheet is folded back and both the bottom sheet and the top sheet are primed with an adhesive primer. The primer is allowed to flash off. The tape adhesive is applied to the bottom sheet so that a minimum of the tape will extend out from under the top sheet when laid over the tape. The top sheet is allowed to lay flat over the tape and the release paper is removed by pulling it at a 45 to 90 degree angle, keeping the release paper flat to the surface of the bottom sheet. The seam area is then rolled with a silicone-sleeved roller.  
1.2.2 Cover Strip Tape—This technique requires the membrane to be overlapped a minimum distance. An area either side of the seam edge is primed. The primer is allowed to flash off. The cover strip is applied with the adhesive side down, centered over the top sheet edge while removing the release paper as it proceeds along centered over the edge of the top sheet. The cover strip is then rolled with a silicone-sleeved roller.  
1.3 For nondestructive test methods, see Practice D4437/D4437M.  
1.4 This test method is applicable for seaming processes that use tape adhesive as a seaming mechanism.  
1.5 Subsequent decisions as to seam acceptance criteria are made according to the site-specific contract plans, specifications, and contractor quality control/contractor quality assurance (CQC/CQA) documents.  
1.6 In case of a material-specific test method, this test method shall take precedence.  
1.7 Hazardous Materials—Always consult the proper material safety data sheets for any hazardous material used for the proper ventilation and protection. The use of the oven in these test methods, in this practice, may accelerate fume production from the test specimen.  
1.8 The values stated in both inch-pound and SI units are to be regarded separately as the standard. Values in parentheses are for information only.  
1.9 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 saf...

General Information

• Status: Historical
• Publication Date: 31-Jan-2018
• ICS: 59.080.70 - Geotextiles
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.10 - Geomembranes

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: D7272 − 06 (Reapproved 2018)
Standard Test Method for
Determining the Integrity of Seams Used in Joining
1
Geomembranes by Premanufactured Taped Methods
This standard is issued under the fixed designation D7272; 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 specifications, and contractor quality control/contractor quality
assurance (CQC/CQA) documents.
1.1 This test method describes destructive quality control
and/or quality assurance tests to determine the integrity of 1.6 In case of a material-specific test method, this test
seams produced using taped seaming methods. This test method shall take precedence.
method presents the procedures used for determining the
1.7 Hazardous Materials—Always consult the proper mate-
quality of taped seams subjected to both peel and shear tests.
rial safety data sheets for any hazardous material used for the
These test procedures are intended for nonreinforced and
proper ventilation and protection. The use of the oven in these
reinforced geomembranes.
test methods, in this practice, may accelerate fume production
1.2 The types of tape seaming techniques used to construct from the test specimen.
geomembrane seams include the following:
1.8 The values stated in both inch-pound and SI units are to
1.2.1 Inseam Tape—This technique requires the membrane
be regarded separately as the standard. Values in parentheses
to be overlapped a minimum distance. The top sheet is folded
are for information only.
back and both the bottom sheet and the top sheet are primed
1.9 This standard does not purport to address all of the
with an adhesive primer. The primer is allowed to flash off. The
safety concerns, if any, associated with its use. It is the
tape adhesive is applied to the bottom sheet so that a minimum
responsibility of the user of this standard to establish appro-
of the tape will extend out from under the top sheet when laid
priate safety, health, and environmental practices and deter-
over the tape. The top sheet is allowed to lay flat over the tape
mine the applicability of regulatory limitations prior to use.
and the release paper is removed by pulling it at a 45 to 90
1.10 This international standard was developed in accor-
degree angle, keeping the release paper flat to the surface of the
dance with internationally recognized principles on standard-
bottom sheet. The seam area is then rolled with a silicone-
ization established in the Decision on Principles for the
sleeved roller.
Development of International Standards, Guides and Recom-
1.2.2 Cover Strip Tape—This technique requires the mem-
mendations issued by the World Trade Organization Technical
brane to be overlapped a minimum distance. An area either side
Barriers to Trade (TBT) Committee.
of the seam edge is primed. The primer is allowed to flash off.
The cover strip is applied with the adhesive side down,
2. Referenced Documents
centered over the top sheet edge while removing the release
2
2.1 ASTM Standards:
paper as it proceeds along centered over the edge of the top
D413 Test Methods for Rubber Property—Adhesion to Flex-
sheet. The cover strip is then rolled with a silicone-sleeved
ible Substrate
roller.
D638 Test Method for Tensile Properties of Plastics
1.3 For nondestructive test methods, see Practice D4437/
D653 Terminology Relating to Soil, Rock, and Contained
D4437M.
Fluids
1.4 This test method is applicable for seaming processes
D882 Test Method for Tensile Properties of Thin Plastic
that use tape adhesive as a seaming mechanism.
Sheeting
D4437/D4437M Practice for Nondestructive Testing (NDT)
1.5 Subsequent decisions as to seam acceptance criteria are
for Determining the Integrity of Seams Used in Joining
made according to the site-specific contract plans,
Flexible Polymeric Sheet Geomembranes
1
This test method is under the jurisdiction of ASTM Committee D35 on
Geosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomem-
2
branes. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Feb. 1, 2018. Published February 2018. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved 2006. Last previous version approved 2011 as D7272 – 06 (2011). DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D7272-06R18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D7272 − 06 (2018)
D4439 Terminology f
...

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: D7272 − 06 (Reapproved 2011) D7272 − 06 (Reapproved 2018)
Standard Test Method for
Determining the Integrity of Seams Used in Joining
Geomembranes by Pre-manufacturedPremanufactured
1
Taped Methods
This standard is issued under the fixed designation D7272; 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 describes destructive quality control and/or quality assurance tests to determine the integrity of seams
produced using taped seaming methods. This test method presents the procedures used for determining the quality of taped seams
subjected to both peel and shear tests. These test procedures are intended for non-reinforcednonreinforced and reinforced
geomembranes.
1.2 The types of tape seaming techniques used to construct geomembrane seams include the following.following:
1.2.1 Inseam Tape—This technique requires the membrane to be overlapped a minimum distance. The top sheet is folded back
and both the bottom sheet and the top sheet are primed with an adhesive primer. The primer is allowed to flash-off. flash off. The
tape adhesive is applied to the bottom sheet so that a minimum of the tape will extend out from under the top sheet when laid over
the tape. The top sheet is allowed to lay flat over the tape and the release paper is removed by pulling it at a 45 to 90 degree angle,
keeping the release paper flat to the surface of the bottom sheet. The seam area is then rolled with a silicone sleeved
silicone-sleeved roller.
1.2.2 Cover Strip Tape—This technique requires the membrane to be overlapped a minimum distance. An area either side of the
seam edge is primed. The primer is allowed to flash-off. flash off. The cover strip is applied with the adhesive side down, centered
over the top sheet edge while removing the release paper as it proceeds along centered over the edge of the top sheet. The cover
strip is then rolled with a silicone sleeved silicone-sleeved roller.
1.3 For nondestructive test methods, see Practice D4437D4437/D4437M.
1.4 This test method is applicable for seaming processes that use tape adhesive as a seaming mechanism.
1.5 Subsequent decisions as to seam acceptance criteria are made according to the site-specific contract plans, specifications,
and contractor quality control/contractor quality assurance (CQC/CQA) documents.
1.6 In case of a material specific material-specific test method, this test method shall take precedence.
1.7 Hazardous Materials—Always consult the proper material safety data sheets for any hazardous material used for the proper
ventilation and protection. The use of the oven in these test methods, in this practice, may accelerate fume production from the
test specimen.
1.8 The values stated in both inch-pound and SI units are to be regarded separately as the standard. Values in parentheses are
for information only.
1.9 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.
1.10 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.
1
This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomembranes.
Current edition approved June 1, 2011Feb. 1, 2018. Published July 2011February 2018. Originally approved 2006. Last previous version approved 20062011 as
D7272D7272 – 06 (2011).–06.DOI: 10.1520/D7272-06R11. DOI: 10.1520/D7272-06R18.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D7272 − 06 (2018)
2. Referenced Documents
2
2.1 ASTM Standards:
D413 Test Methods for Rubber Property—Adhesion to Flexible Substrate
D638 Test Method for Tensile Properties of Plastics
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D882 Test
...