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AASHTO R 69
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AASHTO R 69 2015 Edition, January 1, 2015 Standard Practice for Determination of Long-Term Strength for Geosynthetic Reinforcement
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Description / Abstract:
This protocol has been developed to address polypropylene (PP),
polyethylene (PE or HDPE), and polyester (PET) geosynthetics (i.e.,
geotextiles and geogrids). For other geosynthetic polymers [(e.g.,
polyamide (PA) or polyvinyl alcohol (PVA)], the installation damage
and creep protocols provided herein are directly applicable. While
the chemical and biological durability procedures and criteria
provided herein may also be applicable to other polymers (for
example, hydrolysis testing as described in Annex C is likely
applicable to PA and PVA geosynthetics), additional investigation
will be required to establish a detailed protocol and acceptance
criteria for these other polymers. These other polymers may be
considered for evaluation using this protocol once modifications to
the chemical/biological durability aspects of this protocol have
been developed and are agreed upon by the approval authority.
The values stated in SI units are to be regarded as the standard.
This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all safety problems associated with its usage. It is the duty and responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
The values stated in SI units are to be regarded as the standard.
This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all safety problems associated with its usage. It is the duty and responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.