The perfonnance of two nc climate is discussed. Both geotextiles had the same mass per unit area; one was made with polypropylene, the other
with polyester. Mechanical tests were conducted periodically to evaluate the deterioration of the geotextiles. During
the first six months, the polypropylene geotextile deteriorated less quickly than the polyester geotextile, but shortly
after 6 months of exposute, the polypropylene geotextile undeiwent a sharp decrease in properties and large holes
a in the geotextile. After approximately 6 months, the rate of decrease of the properties of the polyester
geotextile slowed down, and, after 14.5 months of exposure, the polyester geotextile still had mechanical properties
that far exceeded the requirements of the project specifications.
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