ASTM D6214/D6214M-98(2013)e1

Standard Test Method for Determining the Integrity of Field Seams Used in Joining Geomembranes by Chemical Fusion Methods

SIGNIFICANCE AND USE
4.1 Significance—The increased use of geomembranes as barrier materials to restrict fluid migration from one location to another in various applications, and the various types of seaming methods used in joining geomembrane sheets, has created a need to standardize tests by which the various seams can be compared and the quality of the seam systems can be evaluated. This test method is intended to meet such a need.  
4.2 Use—Accelerated seam test provides information as to the status of the field seam. Data obtained by this test method should be used with site-specific contract plans, specification and CQC/CQA documents. This test method is useful for specification testing and for comparative purposes, but does not necessarily measure the ultimate strength that the seam may acquire.
SCOPE
1.1 This test method covers an accelerated, destructive test method for geomembranes in a geotechnical application.  
1.2 This test is applicable to field fabricated geomembranes that are scrim reinforced or non reinforced.  
1.3 This test method is applicable for field seaming processes that use a chemical fusion agent or bodied chemical fusion agent, as the seaming mechanism.  
1.4 Subsequent decisions as to seam acceptance criteria are made according to the site-specific contract plans, specification and CQC/CQA documents.  
1.5 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.  
1.6 Hazardous Materials—Always consult the proper Material Safety Data Sheets for any Hazardous materials used for proper ventilation and protection. The use of the oven in this test method may accelerate fume production from the test specimen.  
1.7 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 applicable of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Apr-2013
• ICS: 83.140.10 - Films and sheets
• 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
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Designation: D6214/D6214M − 98 (Reapproved 2013)
Standard Test Method for
Determining the Integrity of Field Seams Used in Joining
Geomembranes by Chemical Fusion Methods
This standard is issued under the fixed designation D6214/D6214M; 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.
ε NOTE—Units information was editorially corrected in June 2013.
1. Scope 2. Referenced Documents
1.1 This test method covers an accelerated, destructive test 2.1 ASTM Standards:
method for geomembranes in a geotechnical application. D413 TestMethodsforRubberProperty—AdhesiontoFlex-
ible Substrate
1.2 This test is applicable to field fabricated geomembranes
D638 Test Method for Tensile Properties of Plastics
that are scrim reinforced or non reinforced.
D751 Test Methods for Coated Fabrics
1.3 This test method is applicable for field seaming pro-
D882 Test Method for Tensile Properties of Thin Plastic
cesses that use a chemical fusion agent or bodied chemical
Sheeting
fusion agent, as the seaming mechanism.
D4439 Terminology for Geosynthetics
2.2 ANSI/NSF Standard:
1.4 Subsequent decisions as to seam acceptance criteria are
made according to the site-specific contract plans, specification ANSI/NSF Standard 54
and CQC/CQA documents.
3. Terminology
1.5 The values stated in either SI units or inch-pound units
3.1 Definitions of Terms Specific to This Standard:
are to be regarded separately as standard. The values stated in
3.1.1 bodied chemical agent, n—a chemical fluid containing
each system may not be exact equivalents; therefore, each
a portion of the parent geomembrane polymer, that dissolves
system shall be used independently of the other. Combining
the surface of the geomembrane to be bonded.
values from the two systems may result in non-conformance
with the standard. 3.1.2 bodied-chemical fusion seams, n—use of a bodied
chemicalagenttodissolvethesurfacesofthegeomembranefor
1.6 Hazardous Materials—Always consult the proper Ma-
bonding.
terial Safety Data Sheets for any Hazardous materials used for
3.1.2.1 Discussion—Heat and pressure are commonly used
proper ventilation and protection. The use of the oven in this
as part of the bodied chemical fusion process.
test method may accelerate fume production from the test
3.1.3 chemical agent, n—a chemical fluid that dissolves the
specimen.
surface of the geomembrane to be bonded.
1.7 This standard does not purport to address all of the
3.1.4 chemical fusion seams, n—use of a chemical agent to
safety concerns, if any, associated with its use. It is the
dissolve the surface of the geomembrane for bonding.
responsibility of the user of this standard to establish appro-
3.1.4.1 Discussion—Heat and pressure are commonly used
priate safety and health practices and determine the applicable
as part of the chemical fusion process.
of regulatory limitations prior to use.
1 2
This test method is under the jurisdiction of ASTM Committee D35 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
GeosyntheticsandisthedirectresponsibilityofSubcommitteeD35.10onGeomem- contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
branes. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 1, 2013. Published June 2013. Originally the ASTM website.
approved in 1997. Last previous edition approved in 2008 as D6214–98 (2008). Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
DOI: 10.1520/D6214_D6214M-98R13E01. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D6214/D6214M − 98 (2013)
3.2 For other terms refer to Terminology D4439. accelerated curing is necessary. The oven should be a forced
convection oven and must be capable of maintaining a tem-
4. Significance and Use
perature of 50°C [122°F] 6 3°C [6°F] for at least 16 h.
4.1 Significance—The increased use of geomembranes as
5.3 Rock—A rack for holding and positioning the test strip
barrier materials to restrict fluid migration from one location to
horizontally or vertically in an oven is necessary. The samples
another in various applications, and the various types of
must be separated from one another so that the air is free to
seaming methods used in joining geomembrane sheets, has
move completely around the samples without obstruction to
created a need to standardize tests by which the various seams
allow for dissipation of vapors.
can be compared and the quality of the seam systems can be
evaluated. This test method is intended to meet such a need.
6. Materials
4.2 Use—Accelerated seam test provides information as to
6.1 The geomembrane material (reinforced or non rein-
the status of the field seam. Data obtained by this test method
forced) shall be capable of being bonded to itself by one of the
should be used with site-specific contract plans, specification
methods described in Section 3 according to the geomembrane
and CQC/CQA documents. This test method is useful for
manufacturers’ recommendations and instructions.
specification testing and for comparative purposes, but does
not necessarily measure the ultimate strength that the seam
7. Sampling, Test Specimens, and Test Units
may acquire.
7.1 Trial Seam Sample—A representative seam from each
5. Apparatus
seaming crew, fabricated from the same sheet material, and
5.1 A testing machine of the constant-rate-of-cross head- using the same seaming methods as those recommended by the
movement type comprising essentially of the following: geomembranefrabricator,installerorsheetmanufacturer,orall
5.1.1 Fixed Member—A fixed or essentially stationary of these, will be used for this test method.
member carrying one grip.
7.1.1 The trial seam sample shall be no loss than 3 m [10 ft]
5.1.2 Movable Member—A movable member carrying a
in length for this method.
second grip.
7.1.2 For non reinforced geomembranes, cut five, 25 mm [1
5.1.3 Grips—Grips for holding the test specimen between
in.] wide specimens for shear and five, 25 mm [1 in.] wide
the fixed member and the movable member and minimizes
specimens for peel testing from the trial seam sample after the
both slippage and uneven stress distribution. The grips shall be
sample has been cured in accordance with Section 8.
self-aligning so that they shall be attached to the fixed and
7.1.3 For reinforced geomembranes, cut five, 100 mm [4
movable member, respectively, in such a manner that they will
in.] wide specimens for shear and five, in 25 mm [1 in.] wide
move freely into alignment as soon as any load is applied, so
specimens for peel testing from the trial seam sample after the
that the long axis of the test specimen will coincide with the
sample has been cured in accordance with Section 8.
direction of the applied pull through the center line of the grip
7.1.4 Frequency of trial seams and sampling locations
assembly.
within trial seams should be determined in accordance with the
site-specific contract documents.
NOTE 1—Grips lined with thin rubber, crocus-cloth or pressure-
sensitive tape as well as file-faced or serrated grips have been successfully
7.2 Field Seam Sample—Cut a 300 mm [12 in.] long non
used for many materials. The choice of grip surface will depend on the
reinforced or a 1200 mm [48 in.] long reinforced section of the
material tested, thickness, etc.
fabricated seam from the installed lining for this test method.
5.1.4 Drive Mechanism—A drive mechanism for imparting
7.2.1 For non reinforced geomembranes cut five, 25 mm [1
to the movable member in uniform, controlled velocity with
in.] wide specimens for shear and five, 25 mm [1 in.] wide
respect to the stationary member. Unless otherwise specified in
specimens for peel testing from the field seam sample after the
the material specification, the mechanism shall be capable of
sample is cured in accordance with Section 8.
and adjusted so that the movable member shall have a uniform
7.2.2 For reinforced geomembranes cut five, 100 mm [4 in.]
speed of 50 mm/min, [2 in./min], 300 mm/min [12 in./min],
wide specimens for shea
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