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Standard Test Method for Individual Geogrid Junction Strength
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STANDARD published on 1.6.2023
Designation standards: ASTM D7737/D7737M-15(2023)
Publication date standards: 1.6.2023
SKU: NS-1145009
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
geogrid, geogrid junction, geogrid rib, geosynthetic, geotextile, index test, tensile test,, ICS Number Code 59.080.70 (Geotextiles)
Significance and Use | ||||||
5.1?This index test method is to be used to determine the strength of an individual junction in a geogrid product. The test is performed in isolation, while in service the junction is typically confined. Thus the results from this test method are not anticipated to be related to design performance. 5.2?The value of junction strength can be used for manufacturing quality control, development of new products, or a general understanding of the in-isolation behavior of a particular geogrids junction (for example, in relation to handling during shipment and placement of the geogrid). 5.3?This test method is applicable to geogrid products with essentially symmetrical orthogonal or non-orthogonal ribs, yarns, or straps, that is, geogrids which are composed of ribs, yarns, or straps that are entangled through weaving or knitting, welded, bonded, or formed through drawing. |
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1. Scope | ||||||
1.1?This test method is an index test which provides a procedure for determining the strength of an individual geogrid junction, also called a node. The test is configured such that a single rib is pulled from its junction with a rib(s) transverse to the test direction to obtain the maximum force, or strength of the junction. The procedure allows for the use of two different clamps with the appropriate clamp selected to minimize the influence of the clamping mechanism on the specific type of geogrid to be tested. 1.2?The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4?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. |
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2. Referenced Documents | ||||||
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