Lintobent’s structure consists of a composite of woven geotextile and polypropylene fibrous mass into which granular sodium bentonite is firmly embedded. An upper non-woven polypropylene geotextile is thermally bonded to these fibres, during the production process.
Once installed, the Lintobent absorbs water from the surrounding soil to hydrate the bentonite. The inherent strength of the thermal bond confines the free swelling properties of the hydrated bentonite. This produces a product with low permeability and with high internal shear strength in both the dry and saturated conditions, The absence of needle punching throughout the entire assembly assists in controlling leakage of hydrated bentonite through to the upper geotextile.