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Geo-textiles
Jan 30, 2018

Geo-textiles form one of the two largest group of geosynthetics, and have been steadily growing in use during the past 20 years.

They are textiles in the traditional sense, but consist of synthetic fibers rather than natural ones such as cotton, wool, or silk. Thus bio-degradation is not a problem.

These synthetic fibers are made into a flexible, porous fabric by standard weaving machinery or are matted together in a random, or non-woven, manner.

The major point is that they are pervious to water flow across their manufactured plane and also within their plane, but to a widely varying degree.

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There are at least 80 specific applications area for geo textiles that have been developed; however, the fabric always performs at least one of five discrete functions:

1. Separation

2. Reinforcement

3. Filtration

4. Drainage

5. Moisture barrier (when impregnated)

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Designing with Geomembranes

Leakage Rates are determined by Quality Control.  SEAMS

Consider compatibility with retained liquid or waste.

Consider GM as potential slip-surface on slopes

(sunlight, air, burrowing rodents)

Consider exposure to long-term environmental agents of weathering

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