HDPE Coated Woven Mesh Gabions And Mattresses

MESH WIRE: 2.70mm wire diameter core for the mesh fabric and 3.4mm wire diameter core for selvedged ends, all to BS 1052
DIAPHRAGMS: Diaphragms are to be provided along the length of the unit at 1m intervals except for a unit length of 1.5m which does not have a diaphragm.
JOINTING: Gabions shall be provided with lacing wire 2.2mm wire diameter core of the same corrosion protection as the mesh fabric for assembly of the units. Stainless steel `C` rings fixed with a pneumatic closing tool (1 clip every other mesh opening) can be used as an alternative to continuous lacing
GABION FILL: Gabion fill shall be a hard durable and non frost susceptible (rock ,stone or clean crushed structural concrete) having a minimum dimension not less than the mesh opening 80mm and a maximum dimension of 200mm.
CONSTRUCTION: Gabions should be unfolded from the pack and formed into the box shape.

The units are then assembled with continuous lacing wire or ‘C’ rings, a row of units are then joined together and require tensioning longitudinally prior to filling, All gabion fill shall be packed tightly to minimize voids and the gabion fill on the exposed face of the gabion is to be hand packed.

Gabions are to be filled in 1/3rd height layers for 1m deep units and half height layers for 0.5m deep units. At no time should adjacent cells differ in filled height by more than 1 layer.

Internal windlass bracing ties (formed from the lacing wire) 4 per 1sqm at 1/3rd points vertically and third points horizontally on 1m deep units and at mid height and at third points horizontally on 0.5m deep units.

End cells require units to internal windlass ties in both directions. Units shall be overfilled by 25 to 50mm filled such that the mesh lid bears onto the gabion fill. The lid shall be wired down on all joints and across the diaphragms.