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Lab Services: Geosynthetic testing

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Test Method Title

Flexural Rigidity of Geogrids, Geotextiles and Related Products

Reference Number

D7748

Material

Geogrid

Test Property

bending length, flexural rigidity

Description of Test

At a specified rate, a specimen is slid along a table top parallel to its long dimension, until its leading edge projects from the edge. The overhang length is measured when the tip of the specimen is depressed under its own mass to the point where the line joining the top to the edge of the platform makes a 0.724 radians (41.5°) angle with the horizontal. From the measured length both bending length and flexural rigidity are calculated.

Preferred Test Sample Size

3' x roll width

Number of Test Specimens

5 machine direction 5 cross machine direction

Test Specimen Size

minimum 2" x 36" (geogrids) but must include 2 geogrid apertures in width

Keywords

bending length; flexural rigidity; stiffness

For more information, contact GeoTesting Express:



Atlanta

770.645.6575


Boston

978.635.0424


Chicago

224.676.1371


New York

212.566.6630



info@geotesting.com

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