As in reinforced walls the active loads will not de crease during the service life of.the
construction, data on creep and creep rupture of the reinforcement are of paramount importance.
For the endorsemenb of our woven polyester geogrid in Hong Kong, measurements of the geogrid have
been carried out at temperatures of 40 and 60 ° C, with creep loads ranging from 87.5 to 65% of
the short-term streng k. The investigations were accomplished in accordance with the new
European (CEN) Draft Standard on Creep and Creep Rupture.
The results are presented in stress-rupture diagrams and creep curves for either temperature.
The paper discusses the accuracy of the results and presents conclusions.
Inforn tion is given on the molecular structure of polyester to explain its excellent creep and
creep-rupture behaviour.
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