CLWYD
REINFORCEMENTS

Rhosddu Industrial Estate
Rhosddu
Wrexham
Clwyd LL11 4YL

Tel: 01978 354454
Fax: 01978 291373

SOIL REINFORCEMENT

Gabions and Mattresses

Figure 1
Figure 2
Figure 3
Manufacture & Delivery   Assembly Guide & Use


All gabions and mattresses are manufactured from cold drawn steel wire, electrically welded at every intersectionn. Standard sizes and finishes are shown in the tables. Other specifications may be available to special order.

Weldmesh gabions and mattresses arrive flat. On site, gabions are opened out as Figure 3, and then simply made into a box shape, as Figure 1.

Mattresses are assembled as Figure 2.

Gabions or mattress sections are linked together before despatch with split rings on 4 & 5 mm wire diameters or stainless steel clips on wire diameters up to 3mm. Split rings are also supplied for site assembly.

 


Site assembly of gabions and mattresses should be carried out in accordance with the leaflet issued by the manufacturers

Assembled gabions should be placed in position prior to filling, and secured to adjoining gabions by lacing with wire provided

Filling material to be not less than 100mm, or larfer than 150mm; 905 of fill to be retained on a 100mm ring

The fill should be packed tightly so that there are no apparent voids

Gabions should be overfilled by 25mm - 50mm to allow for settlement

The lacing of the lids should be carried out immediately after filling, particularly in storm or flood situations

A visual Assembly Guide is available

Gabions

   
Hot Dip Galvanised to BS 729 or Bezinal Coated
Nominal Dimensions TWIL WELDMESH Specification
  Grey Plastic Coated on Wire Galvanised to BS 443
Nominal Dimensions TWIL WELDMESH Specification
Length / Width / Depth (metres) Diaphragms Capacity (cu m) Nominal mesh / Wire Diameter (mm)
1 x 1 x 0.5 0 0.5 75 x 75 x 3.00
or
75 x 75 x 4.00
or
75 x 75 x 5.00
1 x 1 x 1.0 0 1.0
2 x 1 x 1.0 1 1.0
2 x 1 x 1.0 1 2.0
3 x 1 x 0.5 2 1.5
3 x 1 x 1.0 2 3.0
4 x 1 x 0.5 3 2.0
4 x 1 x 1.0

3

4.0
 
Length / Width / Depth (metres) Diaphragms Capacity (cu m) Nominal mesh / Wire Diameter (mm)
1 x 1 x 0.5 0 0.5 75 x 75 x 2.70
galvanised core
coated to 3.20
overall or heavier
specifications may
be available
upon request
1 x 1 x 1.0 0 1.0
2 x 1 x 0.5 1 1.0
2 x 1 x 1.0 1 2.0
3 x 1 x 0.5 2 1.5
3 x 1 x 1.0 2 3.0
4 x 1 x 0.5 3 2.0
4 x 1 x 1.0

3

4.0

Mattresses

   
Hot Dip Galvanised to BS 729 or Bezinal Coated
Nominal Dimensions TWIL WELDMESH Specification
  Grey Plastic Coated on Wire Galvanised to BS 443
Nominal Dimensions TWIL WELDMESH Specification
Length / Width / Depth (metres) Diaphragms Capacity (cu m) Nominal mesh / Wire Diameter (mm)
6 x 2 x 0.150 5 1.8 75 x 75 x 2.50
6 x 2 x 0.225 5 2.7
6 x 2 x 0.300

5

3.6
 
Length / Width / Depth (metres) Diaphragms Capacity (cu m) Nominal mesh / Wire Diameter (mm)
6 x 2 x 0.150 5 1.8 75 x 75 x 2.70
galvanised core,
coated to 3.20 overall
6 x 2 x 0.225 5 2.7
6 x 2 x 0.300

5

3.6

WEIGHTS OF FILLING MATERIALS
   
Material Average kg/cu metre
Basalt 1650
Brick 1240
Broken Concrete 1340
Granite 1600
 
Material Average kg/cu metre
Limestone 1440
Sandstone 1390
Shingle 1500
Slag 1500

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