This document specifies an index test method to determine the friction characteristics of geosynthetics in contact with a standard sand as described in EN 196-1, i.e. with a specified density and moisture content, under a normal stress and at a constant rate of displacement, using a direct shear apparatus.The same testing procedure can be used with any type of soil with the density and moisture content that are required to evaluate the performance under specific conditions or with another geosynthetic under a normal stress and at a constant rate of displacement, using a direct shear apparatus.The procedure can also be used for testing geosynthetic barriers.
Document identifier
ISO 12957-1:2018
Title
Geosynthetics - Determination of friction characteristics - Part 1: Direct shear test
ISO Category
TC 221: Geosynthetics
Publication date
2018-12-01
International Relationship
BS EN ISO 12957-1:2018
History of version
ISO 12957-1:2018 * ISO 12957-1:2005
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