ASTM D6214-98
(Test Method)Standard Test Method for Determining the Integrity of Field Seams Used in Joining Geomembranes by Chemical Fusion Methods
Standard Test Method for Determining the Integrity of Field Seams Used in Joining Geomembranes by Chemical Fusion Methods
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 both inch-pound and SI units are to be regarded separately as the standard. The values given in parentheses are for information only.
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.
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Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: D 6214 – 98
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 D 6214; 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 4439 Terminology for Geosynthetics
2.2 ANSI/NSF Standard:
1.1 This test method covers an accelerated, destructive test
ANSI/NSF Standard 54
method for geomembranes in a geotechnical application.
1.2 This test is applicable to field fabricated geomembranes
3. Terminology
that are scrim reinforced or non reinforced.
3.1 Definitions of Terms Specific to This Standard:
1.3 This test method is applicable for field seaming pro-
3.1.1 bodied chemical agent, n—a chemical fluid containing
cesses that use a chemical fusion agent or bodied chemical
a portion of the parent geomembrane polymer, that dissolves
fusion agent, as the seaming mechanism.
the surface of the geomembrane to be bonded.
1.4 Subsequent decisions as to seam acceptance criteria are
3.1.2 bodied-chemical fusion seams, n—use of a bodied
made according to the site-specific contract plans, specification
chemical agent to dissolve the surfaces of the geomembrane for
and CQC/CQA documents.
bonding.
1.5 The values stated in both inch-pound and SI units are to
3.1.2.1 Discussion—Heat and pressure are commonly used
be regarded separately as the standard. The values given in
as part of the bodied chemical fusion process.
parentheses are for information only.
3.1.3 chemical agent, n—a chemical fluid that dissolves the
1.6 Hazardous Materials—Always consult the proper Ma-
surface of the geomembrane to be bonded.
terial Safety Data Sheets for any Hazardous materials used for
3.1.4 chemical fusion seams, n—use of a chemical agent to
proper ventilation and protection. The use of the oven in this
dissolve the surface of the geomembrane for bonding.
test method may accelerate fume production from the test
3.1.4.1 Discussion—Heat and pressure are commonly used
specimen.
as part of the chemical fusion process.
1.7 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 Significance— The increased use of geomembranes as
priate safety and health practices and determine the applicable
barrier materials to restrict fluid migration from one location to
of regulatory limitations prior to use.
another in various applications, and the various types of
2. Referenced Documents seaming methods used in joining geomembrane sheets, has
created a need to standardize tests by which the various seams
2.1 ASTM Standards:
can be compared and the quality of the seam systems can be
D 413 Test Methods for Rubber Property—Adhesion to
2 evaluated. This test method is intended to meet such a need.
Flexible Substrate
3 4.2 Use—Accelerated seam test provides information as to
D 638 Test Method for Tensile Properties of Plastics
4 the status of the field seam. Data obtained by this test method
D 751 Test Method for Coated Fabrics
should be used with site-specific contract plans, specification
D 882 Test Methods for Tensile Properties of Thin Plastic
3 and CQC/CQA documents. This test method is useful for
Sheeting
specification testing and for comparative purposes, but does
not necessarily measure the ultimate strength that the seam
This test method is under the jurisdiction of ASTM Committee D-35 on may acquire.
Geosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomem-
branes.
Current edition approved Aug. 10, 1998. Published December 1998 Originally
published as D 6214–97. Last previous edition D 6214–97.
2 5
Annual Book of ASTM Standards, Vol 09.01. Annual Book of ASTM Standards, Vol 04.13.
3 6
Annual Book of ASTM Standards, Vol 08.01. Available from American National Standards Institute, 11 W. 42nd St., 13th
Annual Book of ASTM Standards, Vol 09.02. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D6214–98
5. Apparatus using the same seaming methods as those recommended by the
geomembrane frabricator, installer or sheet manufacturer, or all
5.1 A testing machine of the constant-rate-of-cross head-
of these, will be used for this test method.
movement type comprising essentially of the following:
7.1.1 The trial seam sample shall be no loss than 3 m (10 ft)
5.1.1 Fixed Member— A fixed or essentially stationary
in length for this method.
member carrying one grip.
7.1.2 For non reinforced geomembranes, cut five, 1 in. (25
5.1.2 Movable Member— A movable member carrying a
mm) wide specimens for shear and five, 1 in. (25 mm) wide
second grip.
specimens for peel testing from the trial seam sample after the
5.1.3 Grips—Grips for holding the test specimen between
sample has been cured in accordance with Section 8.
the fixed member and the movable member and minimizes
7.1.3 For reinforced geomembranes, cut five, 4 in. (100
both slippage and uneven stress distribution. The grips shall be
mm) wide specimens for shear and five, in in. (25 mm) wide
self-aligning so that they shall be attached to the fixed and
specimens for peel testing from the trial seam sample after the
movable member, respectively, in such a manner that they will
sample has been cured in accordance with Section 8.
move freely into alingment as soon as any load is applied, so
7.1.4 Frequency of trial seams and sampling locations
that the long axis of the test specimen will coincide with the
within trial seams should be determined in accordance with the
direction of the applied pull through the center line of the grip
site-specific contract documents.
assembly.
7.2 Field Seam Sample—Cut a 300 mm (12 in.) long non
NOTE 1—Grips lined with thin rubber, crocus-cloth or pressure-
reinforced or a 1200 mm (48 in.) long reinforced section of the
sensitive tape as well as file-faced or serrated grips have been successfully
fabricated seam from the installed lining for this test method.
used for many materials. The choice of grip surface will depend on the
7.2.1 For non reinforced geomembranes cut five, 1 in. (25
manterial tested, thickness, etc.
mm) wide specimens for shear and five, 1 in. (25 mm) wide
5.1.4 Drive Mechanism— A drive mechanism for imparting
specimens for peel testing from the field seam sample after the
to the movable member in uniform, controlled velocity with
sample is cured in accordance with Section 8.
respect to the stationary member. Unless otherwise specified in
7.2.2 For reinforced geomembranes cut five, 4 in. (100 mm)
the material specification, the mechanism shall be capable of
wide specimens for shear and five, 1 in. (25 mm) wide
and adjusted so that the movable member shall have a uniform
specimens for peel testing from the field seam sample after the
speed of 50 mm/min, (2 in. min), 300 mm/min (12 in./min),
samples is cured in accordance with Section 8.
and 500 mm/min (20 in./min.)
NOTE 2—Specimens that will be subjected to peel and shear test shall
5.1.5 Load Indicator— A suitable load-indicating mecha-
be alternately selected from the sample and labeled ash show in Fig. 1.
nism capable of showing the total tensile load carried by the
test specimen when held by the grips. This mechanism shall be 7.3 The field seam sample should be wide enough (approxi-
essentially free of inertia lag at the specified rate of testing and mately 12 in.) (30 cm) to accomodate peel and shear testing as
shall indicate the load with an accuracy of 6 1 % of the in 9.1 and 9.2.
indicated value or better. 7.4 Allow the field seam sample to cure or age properly (see
5.1.6 Extension Indicator (Extensometer) (If Employed)—A Section 8) before testing.
suitable instrument shall be used for determ
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