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1.1 ,This test method covers the measurement of stiffness properties of geogrids, geotextiles and geogrid-geotextile composites all of which are referred to as geosynthetics within this test method. Bending length is measured and flexural rigidity is calculated through use of the cantilever test procedure.
1.1.1 ,This test method employs the principle of cantilever bending of the geosynthetic under its own mass.