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ASTM D7179-05

(Test Method)

Standard Test Method for Determining Geonet Breaking Force

Standard Test Method for Determining Geonet Breaking Force

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1.1 This test method is used to measure the breaking force of a Geonet.
1.2 This test is applicable for manufacturing quality control (MQC) and construction quality assurance (CQA) testing and is not recommended as a performance test.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-May-2005
ICS
59.080.70 - Geotextiles
Technical Committee
D35 - Geosynthetics
Drafting Committee
D35.01 - Mechanical Properties
Current Stage
Ref Project

Relations

Replaced By
ASTM D7179-07 - Standard Test Method for Determining Geonet Breaking Force
Effective Date
01-Dec-2007
Referred By
ASTM D7273/D7273M-08(2020) - Standard Guide for Acceptance Testing Requirements for Geonets and Geonet Drainage Geocomposites
Effective Date
01-Jun-2005

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ASTM D7179-05 - Standard Test Method for Determining Geonet Breaking Force
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D7179–05
Standard Test Method for
Determining Geonet Breaking Force
This standard is issued under the fixed designation D 7179; 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 3.1.4 peak load, n—maximum force recorded during a
tensile test.
1.1 This test method is used to measure the breaking force
of a Geonet.
4. Summary of Test Method
1.2 This test is applicable for manufacturing quality control
4.1 Geonet specimens are mounted between full width grips
(MQC) and construction quality assurance (CQA) testing and
in a load frame. Tensile load is applied longitudinally to the
is not recommended as a performance test.
specimen at a constant rate of crosshead movement. The test is
1.3 The values stated in SI units are to be regarded as
carried to rupture and a maximum breaking force of each
standard. The values given in parentheses are for information
specimen is recorded.
only.
1.4 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
5.1 This method evaluates tensile breaking force of geonets
responsibility of the user of this standard to establish appro-
for the purposes of quality control and quality assurance.
priate safety and health practices and determine the applica-
Testing is performed parallel to the machine direction only for
bility of regulatory limitations prior to use.
that is the primary direction that geonets witnesses tensile
loading. This method is an index test and is not intended for
2. Referenced Documents
design purposes.
2.1 ASTM Standards:
D 4354 Practice for Sampling of Geosynthetics
6. Apparatus
D 4439 Terminology for Geosynthetics
6.1 Tensile Testing Machine—Constant Rate of Extension
(CRE) equipment meeting the requirements of Specification
3. Terminology
D 76. The load cell shall be accurate to within 61 % of the
3.1 Definitions—Definitions of terms applying to this test
applied force.The drive mechanism shall be able to control the
method appear in Terminology D 4439.
rate of extension to within 61 % of the targeted rate.
3.1.1 atmosphere for testing geosynthetics, n—air main-
6.2 Grips—One of the grips must be self aligning to
tained at a relative humidity between 50 to 70 % and a
compensate for uneven distribution of force across the speci-
temperature of 21 6 2°C (70 6 4°F).
men. The clamping force and the clamp surfaces shall hold the
3.1.2 geonet, n—a geosynthetic consisting of integrally
specimen firmly without causing damage. The clamps shall be
connected parallel sets of ribs overlying similar sets at various
capable of gripping a 100 mm (4 in.) by 25 mm (1 in.) area at
angles for planar drainage of liquids or gases.
a minimum.
3.1.3 index test, n—a test procedure which may contain a
6.3 Recording Mechanism—The testing machine shall be
known bias but which may be used to establish an order for a
equipped with equipment capable of producing a hard copy of
set of specimens with respect to the property of interest.
the force versus displacement curve. Electronic data acquisi-
tion with printer capabilities or direct recording devices is
acceptable.
This test method is under the jurisdiction of ASTM Committee D35 on
Geosynthetics and is the direct responsibility of Subcommittee D35.01 on Mechani-
7. Sampling and Test Specs and Units
cal Properties of Geosynthetics.
Current edition approved June 1, 2005. Published July 2005.
7.1 Lot Sample—For the lot sample, take rolls of geonet per
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the applicable project specification, or as agreed upon between
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
purchaser and supplier. Unless otherwise specified, refer to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Practice D 4354.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D7179–05
7.2 Laboratory Sample—For laboratory sample, take a 9.2 Clamp a specimen so that it is centered in both sets o
...

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Note 1: Differences may exist between ultrasonic measurements and measurements made using other methods due to differences in test conditions such as pressure applied and probe dimensions. An example is ultrasonic and mechanical thickness measurements.  
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SCOPE
1.1 This practice provides a summary of equipment and procedures for ultrasonic testing of geomembranes using the pulse echo method.  
1.2 Ultrasonic wave propagation in solid materials is correlated to physical and mechanical properties and condition of the materials. In ultrasonic testing, two wave propagation characteristics are commonly determined: velocity (based on wave travel time measurements) and attenuation (based on wave amplitude measurements). Velocity of wave propagation is used to determine thickness, density, and elastic properties of materials. Attenuation of waves in solid materials is used to determine microstructural properties of the materials. In addition, frequency characteristics of waves are analyzed to investigate the properties of a test material. Travel time, amplitude, and frequency distribution measurements are used to assess the condition of materials to identify damage and defects in solid materials. Ultrasonic measurements are used to determine the nature of materials/media in contact with a test specimen as well. Measurements are conducted in the time-domain (time versus amplitude) or frequency-domain (frequency versus amplitude).  
1.3 Measurements of one or more ultrasonic wave transmission characteristics are made based on the requirements of the specific testing program.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development ...

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