Work Item
ASTM WK14361
New Test Method for Determining Small-Strain Tensile Properties of Geogrids and Geotextiles by In-Air Cyclic Tension Tests
1. Scope
1.1 These test methods cover the determination of small-strain tensile properties of geogrids and geotextiles by subjecting wide-width specimens to cyclic tensile loading. 1.2 This test method allows for the determination of small-strain cyclic tensile modulus by the measurement of cyclic tensile load and elongation. 1.3 This test method is intended to provide properties for design. The test method was specifically developed to provide a measure of modulus for use in mechanistic-empirical pavement design. The use of cyclic modulus from this test method for other design procedures should be evaluated on a case-by-case basis. 1.4 Three procedures (Methods A, B, and C) are provided to determine small-strain cyclic tensile modulus on geogrids and geotextiles. 1.4.1 Method A--Testing a relatively wide specimen of goegrid in cyclic tension (kN/m or lbf/ft). 1.4.2 Method B--Testing multiple layers of a relatively wide specimen of geogrid in cyclic tension (kN/m or lbf/ft). 1.4.3 Method C--Testing a relatively wide specimen of geotextile in cyclic tension (kN/m or lbf/ft). 1.5 The values stated in SI units are to regarded as the standard. The values in parentheses are for information only. 1.6 This standard may involve hazardous materials, operations, and equipment. 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.
Keywords
geogrid; geogrid rib; geosynthetic; geotextile; index test; tensile test
Rationale
The parameters determined using these test methods will be used in highway design.
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 02-14-2007
Technical Contact: Eli Cuelho
Item: 033
Ballot: COS0110
Status: Ballot Item Approved
Item: 003
Ballot: D35.01 (07-01)
Status: Will Reballot Item
Item: 003
Ballot: D35.01 (07-04)
Status: Will Reballot Item
Item: 002
Ballot: D35.01 (08-01)
Status: Negative Votes Need Resolution