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BSI PD ISO/TR 20432:2007

Guidelines for the determination of the long-term strength of geosynthetics for soil reinforcement
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BSI PD ISO/TR 20432:2007

Guidelines for the determination of the long-term strength of geosynthetics for soil reinforcement

PUBLISH DATE 2008
PAGES 38
BSI PD ISO/TR 20432:2007

This Technical Report provides guidelines for the determination of the long-term strength of geosynthetics for soil reinforcement.

This Technical Report describes a method of deriving reduction factors for geosynthetic soil-reinforcement materials to account for creep and creep rupture, installation damage and weathering, and chemical and biological degradation. It is intended to provide a link between the test data and the codes for construction with reinforced soil.

The geosynthetics covered in this Technical Report include those whose primary purpose is reinforcement, such as geogrids, woven geotextiles and strips, where the reinforcing component is made from polyester (polyethylene terephthalate), polypropylene, high density polyethylene, polyvinyl alcohol, aramids and polyamides 6 and 6,6.

This Technical Report does not cover:

  • the strength of joints or welds between geosynthetics, nor whether these might be more or less durable than the basic material,
  • geomembranes, for example, in landfills,
  • the effects of dynamic loading,
  • any change in mechanical properties due to soil temperatures below 0 °C, nor the effect of frozen soil,
  • uncertainty in the design of the reinforced soil structure, nor the human or economic consequences of failure.

Any prediction is not a complete assurance of durability.

SDO BSI: British Standards Institution
Document Number ISO/TR 20432
Publication Date May 30, 2008
Language en - English
Page Count
Revision Level
Supercedes
Committee B/553
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