Alterung von Bewehrungsgittern aus Polyester
| Author(s): |
Werner Müller
|
|---|---|
| Medium: | journal article |
| Language(s): | German |
| Published in: | Bautechnik, June 2013, n. 6, v. 90 |
| Page(s): | 359-366 |
| DOI: | 10.1002/bate.201200058 |
| Abstract: |
Aging of PET geodridsDue to hydrolytic aging of the polyester material the tensile strength of PET-geogrids will change with time. According to the design recommendations (EBGEO) of the German Geotechnical Society DGGT this effect has to be taken into account by a factor of reduction. In principle the determination of the factor for chemical degradation is described in ISO/TR 20432. However, there is a considerable discretionary leeway in realizing the procedure for a special type of product. The questions, which occur from this for PET-geogrids, will be discussed in detail. Against this background building stones of a well-defined procedure are suggested, which considers not only mechanical degradation but also degradation in molecular weight. |
| Keywords: |
reduction value geogrids hydrolysis factor of reduction aging
|
| Available from: | Refer to publisher |
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data sheet - Reference-ID
10068897 - Published on:
24/07/2013 - Last updated on:
13/08/2014
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