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ASTM D6496-04

(Test Method)

Standard Test Method for Determining Average Bonding Peel Strength Between the Top and Bottom Layers of Needle-Punched Geosynthetic Clay Liners

Standard Test Method for Determining Average Bonding Peel Strength Between the Top and Bottom Layers of Needle-Punched Geosynthetic Clay Liners

SCOPE
1.1 This test method covers the laboratory determination of the average bonding strength between the top and bottom layers of a sample of a geosynthetic clay liner (GCL).
1.2 The values in SI units are to be regarded as the standard. The values in pound units are in parentheses for information.
1.3 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 applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-May-2004
ICS
91.100.50 - Binders. Sealing materials
Technical Committee
D35 - Geosynthetics
Drafting Committee
D35.04 - Geosynthetic Clay Liners
Current Stage
Ref Project

Relations

Replaced By
ASTM D6496-04a - Standard Test Method for Determining Average Bonding Peel Strength Between the Top and Bottom Layers of Needle-Punched Geosynthetic Clay Liners
Effective Date
01-Nov-2004

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ASTM D6496-04 - Standard Test Method for Determining Average Bonding Peel Strength Between the Top and Bottom Layers of Needle-Punched Geosynthetic Clay LinersASTM D6496-04 - Standard Test Method for Determining Average Bonding Peel Strength Between the Top and Bottom Layers of Needle-Punched Geosynthetic Clay Liners
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ASTM D6496-04 - Standard Test Method for Determining Average Bonding Peel Strength Between the Top and Bottom Layers of Needle-Punched Geosynthetic Clay Liners
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D6496–04
Standard Test Method for
Determining Average Bonding Peel Strength Between Top
and Bottom Layers of Needle-Punched Geosynthetic Clay
1
Liners
This standard is issued under the fixed designation D 6496; 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 (ε) indicates an editorial change since the last revision or reapproval.
1. Scope rate of extension by a tensile testing machine until the top and
bottom layers of the specimen separate. The average bonding
1.1 This test method covers the laboratory determination of
peel strength of the test specimen can be calculated from
the average bonding strength between the top and bottom
machine scales, dials, recording charts, or an interface com-
layers of a sample of a geosynthetic clay liner (GCL).
puter.
1.2 The values in SI units are to be regarded as the standard.
The values in inch-pound units are in parentheses for informa-
5. Significance and Use
tion.
5.1 The bonding strength test for the top and bottom layers
1.3 This standard does not purport to address all of the
of the geosynthetic clay liner is intended to be an index test. It
safety concerns, if any, associated with its use. It is the
is anticipated that the results of the test will be used to evaluate
responsibility of the user of this standard to establish appro-
the quality of the bonding process.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
6. Apparatus
6.1 Tensile Testing Machine—A constant rate of extension
2. Referenced Documents
2
(CRE) type of testing machine described in Specification D 76
2.1 ASTM Standards:
shall be used with a minimum precision measuring capability
D 76 SpecificationforTensileTestingMachinesforTextiles
–4
of 0.1 N/m (5.71 3 10 lbf/in).
D 4439 Terminology for Geosynthetics
6.2 Clamps—The clamps shall be a minimum 25 by 100
3. Terminology mm (1 by 4 in.) and with appropriate clamping power to
prevent slipping or crushing (damage).
3.1 Definitions:
6.3 Die or Template, 100 by 200 mm (61 mm) (4 by 8 in.).
3.1.1 geosynthetic, n—a product manufactured wholly or in
6.4 Miscellaneous, knives, razor, and the like, as required.
part from polymeric material used with soil, rock, earth, or
other geotechnical engineering related material as an integral
7. Test Specimen
part of a project, structure, or system. D 4439
7.1 The sample received at the testing laboratory should be
3.1.2 geosynthetic clay liner, n—a manufactured hydraulic
in satisfactory condition and representative of the product
barrier consisting of clay bonded to a layer or layers of
manufactured or delivered to a site, or both.
geosynthetic material(s). (Currently being balloted under D35
7.2 The size of the die or template for cutting specimens is
Committee on Terminology)
100 by 200 mm (4 by 8 in.).
4. Summary of Test Method 7.3 The loss of clay during the specimen cutting process
should have no bearing on the results of the test.
4.1 The top and bottom layers of a geosynthetic clay liner
7.4 A minimum of five test specimens should be cut from
aregrippedindividuallyintensilegripsandpulledataconstant
the laboratory sample such that they are representative of the
entire roll width. All specimens should be parallel to the
1
This test method is under the jurisdiction of ASTM Committee D35 on
machine direction.
Geosynthetics and is the direct responsibility of Subcommittee D35.04 on Geosyn-
thetic Clay Liners.
8. Conditioning
CurrenteditionapprovedJune1,2004.PublishedJuly2004.Originallyapproved
in 1999. Last previous edition approved in 2003 as D 6496 – 03.
8.1 The test specimen shall be tested as received.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. 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 ----------------------
D6496–04
9. Procedure below the average for the set of specimens, discard the results
and test another specimen. Continue until the required number
9.1 Obtain Specimens—Using the die, or template and
of readings have been taken.
razor, and other necessary apparatus, carefully cut from the
laboratory sample five test specimens. The five specimens
10. Calculation
should be randomly selected from locations on the sample, but
10.1 Bonding Peel Strength—Calculate the bond strength of
should be distributed across the sample. All specimens should
individual specimens, that is, the average force to caus
...

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SCOPE
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SCOPE
1.1 This test method is used to determine the connection properties between a layer of geosynthetic reinforcement and segmental concrete block units used in construction of reinforced soil retaining walls. The test is carried out under conditions determined by the user that reproduce the connection system at full scale. The results of a series of tests are used to define a relationship between connection strength for a segmental unit-geosynthetic connection system and normal load.  
1.2 This is a performance test used to determine properties for design of retaining wall systems utilizing segmental concrete units and soil reinforcing geosynthetics, either geotextiles or geogrids. The test is performed on a full-scale construction of the connection and may be run in a laboratory or the field.  
1.3 The values stated in SI units are regarded as the standard. The values stated in inch-pound units are provided for information only.  
1.4 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.  
1.5 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.

  • Standard
    9 pages
    English language
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  • Standard
    9 pages
    English language
    sale 15% off