Composite for geotechnics, building and the like, with impermeable layer

By designing protruding elements and sheet elements on both sides of the composite material for integrated extrusion, an independent drainage and fastening system is formed, which solves the problem of existing film slippage and insufficient drainage capacity on inclined planes, and achieves high efficiency and Economical liquid and gas discharge improves material compression resistance and safety.

CN101842228AInactive Publication Date: 2010-09-22TENAX CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-09-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

A composite (1) for geotechnics, building and the like, with an impermeable layer, comprising a sheet-like element (2) that is impermeable to fluids and has, monolithically therewith, elements (10, 12) that protrude on the first and second faces, on at least one of the faces there being a layer (5) that is integrally coupled to the protruding elements to form, at the first and / or second faces, two separate drainage and / or protection and / or grip systems adapted to withstand intense compression along a direction that is substantially perpendicular to the sheet-like element.
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Description

technical field

[0001] The invention relates to a composite material for use in geotechnical, construction etc., which composite material has an impermeable layer. Background technique

[0002] It is known in geotechnical technology, construction etc. to commonly use impermeable layers or elements which can be used to cover or be covered by other materials.

[0003] Usually the impermeable element is provided with a membrane made of medium density polyethylene or high density polyethylene which is covered by or covered with material such as soil, waste, silt, natural elements, concrete etc.

[0004] In construction, membranes are used both vertically and horizontally to insulate or separate buildings from the ground to form insulating and drainage elements.

[0005] In the geotechnical field, these membranes are used in the construction of landfills, as elements to contain waste, to make the landfill depressions impermeable, and to cover and seal the landfill when the landf...

Examples

Embodiment Construction

[0042] Referring to the accompanying drawings, a composite material with an impermeable layer for use in geotechnical, construction, etc., according to the invention is generally designated by number 1 and comprises a sheet-like element 2 impermeable to fluids, i.e. impermeable Liquids and gases, preferably it consists of a high or medium density polyethylene film of thickness 0.75-2.5 mm.

[0043] An important feature of the present invention is that protruding elements are provided on the first and second faces of the sheet element 2, which are integrally co-extruded with the sheet element to a height of 4 - 10 mm, the thickness can be 1-5 mm; these raised elements can have completely different shapes depending on the specific application of the composite material.

[0044]A particular feature of the invention is that the lamellar element is provided on at least one face with a first integrally bonded layer 5, optionally in addition with a second, connected layer 6 on the ot...