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Geotextiles

Geotextiles are available as woven and non-woven.

As liner protection, against physical damage, the non-wovens are normally the answer.

These are made up of fibers of polyester or polypropylene in random directions - and punched together by needles during the manufacturing process.

Geotextiles are commonly used to separate layers like clay and drainage and to protect liners from damage.

Often used to engineer preferential slip planes to avoid pulling a liner down a steep slope in the event of failure