ASTM D7275-07(2018)

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.
Designation: D7275 − 07 (Reapproved 2018)
Standard Test Method for
Tensile Properties of Bituminous Geomembranes (BGMs)
This standard is issued under the fixed designation D7275; 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 3.2 For definitions of other terms used in this test method,
refer to Terminology D4439.
1.1 This test method is used to measure the tensile proper-
ties of bituminous geomembranes (BGMs) using a dumbbell-
4. Significance and Use
shaped specimen.
4.1 This method is used to evaluate the tensile properties of
1.2 The values stated in SI units are to be regarded as
BGMs. It can be used for manufacturing quality control or
standard. The values given in parentheses are for information
acceptance testing.
only.
4.2 This test method uses a dumbbell specimen. The shape
1.3 This standard does not purport to address all of the
and dimensions of the specimen are defined in this standard.
safety concerns, if any, associated with its use. It is the
No other shape or dimensions are allowed. Other mechanical
responsibility of the user of this standard to establish appro-
properties of BGMs may be measured using different test
priate safety, health, and environmental practices and deter-
methods. Refer to Guide D6455.
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
4.3 The reported properties are the maximum strength and
dance with internationally recognized principles on standard-
elongation at maximum strength.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
5. Apparatus
mendations issued by the World Trade Organization Technical
5.1 Tensile instrumentation shall meet the requirements
Barriers to Trade (TBT) Committee.
outlined in Test Method D638.
2. Referenced Documents
5.2 Grips—One of the grips must be self-aligning to com-
pensate for uneven distribution of force across the specimen.
2.1 ASTM Standards:
The clamping force and the clamp surfaces shall hold the
D638 Test Method for Tensile Properties of Plastics
specimen firmly without causing damage.
D4354 Practice for Sampling of Geosynthetics and Rolled
Erosion Control Products (RECPs) for Testing
5.3 Grip Faces—Grip faces shall be a minimum of 50 mm
D4439 Terminology for Geosynthetics
(2 in.) wide and a minimum of 50 mm (2 in.) in length. Smooth
D6455 Guide for the Selection of Test Methods for Prefab-
rubber, fine serrated, or coarse serrated grip faces have all been
ricated Bituminous Geomembranes (PBGMs)
found to be suitable for testing BGMs. If needed, the use of a
silicone-coated paper to help holding the specimen ends into
3. Terminology
the grips is recommended. The silicone-coated side is to be
3.1 Definitions of Terms Specific to This Standard:
used in contact with the specimen.
3.1.1 prefabricated bituminous geomembrane (BGM), n—a
material fabricated in a plant and consisting principally of
6. Sampling and Test Specimens
nonwoven geotextile, impregnated by a blend of oxidized or
6.1 Sampling shall be conducted according to Practice
polymer-modified bitumen incorporating filler.
D4354.
6.2 Take a sample that will exclude material from the outer
This test method is under the jurisdiction of ASTM Committee D35 on
wrap of the roll or the inner wrap around the core. In the case
Geosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomem-
branes.
where the sample is taken at the production site, material from
Current edition approved Feb. 1, 2018. Published February 2018. Originally
the outer wrap may be used if it is undamaged.
approved in 2006. Last previous edition approved in 2012 as D7275 – 07 (2012).
DOI: 10.1520/D7275-07R18.
6.3 Test Specimens—Prepare five specimens with the length
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ofthespecimenparalleltothemachinedirection(MD)andfive
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