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ISO 12957-2:2024

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Geosynthetics — Determination of friction characteristics — Part 2: Inclined plane test

This document specifies a method to determine the friction characteristics of geosynthetics (geotextiles and geotextile-related products, geosynthetic barriers) in contact with soils or another geosynthetic, at low normal stress, using an inclining plane apparatus.

This test method is primarily intended as a performance test to be used with site specific soils but is also used as an index test with standard sand. It is also possible to measure the displacement of the interface over time (creep phenomenon) without necessarily reaching the slippage failure.

Test data obtained for geogrids tested with a rigid support are not necessarily realistic as the results depend on the friction support.

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Related Information

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  • BS 8661:2019

    Geotextiles. Guidance for specification for basic separation and filtration functions

  • BS EN 12224:2000

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  • BS EN 12225:2020

    Geosynthetics. Method for determining the microbiological resistance by a soil burial test

  • BS EN 12226:2012

    Geosynthetics. General tests for evaluation following durability testing

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ISO 12957-2:2024

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