GABIONS are double-twisted wire mesh baskets of variable sizes, uniformly partitioned into internal cells, interconnected with other similar units. They are filled with stone at the project site to form flexible, permeable, monolithic structures, such as retaining walls, sea walls, channel linings, revetments and weirs for erosion control projects.
The wire mesh used for the gabions is fabricated from heavily galvanized coated wire conforming to BS443 Standards; and woven into double-twisted hexagonal shaped mesh. The double-twist of the woven wire mesh provides integrity, strength and continuity to the structure by adding a non-raveling effect that prevents any accidental damage from spreading.
When gabions are to be placed in aggressive environments, an additional Polyvinyl Chloride (PVC) coating can be applied on the galvanized coated wire by extrusion before the weaving of the mesh. The PVC coating will protect the wire and provide further resistance against chemical, biological and corrosive agents.
Gabion structures are able to develop and integrate with the surrounding environment, permitting the preservation or restorations of the natural environment. They are often used by architects as decorative elements of the landscape.