Galfan Mattress Introduction:
Galfan mattress are manufactured from 95% Zn and 5% Al coated
double twist hexagonal wire mesh, and are normally supplied 6 x 2 m
dimensions with a thickness less than 500mm. Mattress are filled
with stones on site to create a flexible, permeable and monolithic
structure for use in river and canal bank protection works as well
as erosion control and scour protection of slopes.
The galfan coating provides improved corrosion resistance in
comparison to a conventional galvanized coating, combining, in
effect, the passive corrosion inhibition of aluminum oxidation with
the active and passive effects of zinc. Galfan (95% zinc, 5%
aluminium) has proven to be 2 to 3 times more corrosive resistant
than the same thickness of hot dipped galvanized. Depending on the
environment, it may take 50 years to 150 years for 5% rust to show
on the surface of galfan when above ground.
Galfan Mattress material:
1.material:low carbon iron wireQ195
2.wire gauge:2.0mm--5.0mm
3.hole size:60*80,80*100,100*120,120*150
4.mesh size:2*1*1m,3*1*1m,2*1*0.5m,3*1*0.3m or as customer
requirement
5.surface treatment:electro galvanized,hot dipped galvanized
Gabion box (mesh size):
80*100mm 100*120mm Mesh Wire diameter 2.7mm zinc coating:60g,245g,
≥270g/m2
Edge wire diameter 3.4mm zinc coating:60g,245g, ≥270g/m2
Tie wire diameter. 2.2mm zinc coating:60g,≥220g/m2
Gabion mattress(mesh size):
60*80mm Mesh Wire diameter 2.2mm zinc coating:60g, ≥220g/m2
Edge wire diameter 2.7mm zinc coating:60g,245g, ≥270g/m2
Tie wire diameter. 2.2mm zinc coating:60g, ≥220g/m2
Special sizes Gabion are available Mesh Wire diameter 2.0-4.0mm
superior quality,competitive price and
considerate service
Edge wire diameter 2.7-4.0mm
Tie wire diameter. 2.0-2.2mm
Galfan Mattress various characteristics:
(1) Economic. Just fill the stone into the gabions and seal it.
(2) Simple installation. No special technology needed.
(3) Weather proof under natural destroy, corrosion resistant.
(4) No collapse even under big scope of deforming.
(5) Sludge in the stones is good for plant growing. Mixed to form a
integrity with the natural environment.
(6) Good permeation can prevent the damage by hydrostatic.
(7) Less transport freight. It can be folded together for transport
and further installation.
Mattress shall be manufactured with a 6 x 8 mesh type having a
nominal mesh opening of 64 x 83 mm (2.5 by 3.25 in.). Tolerances on
the mesh opening shall not exceed ± 10% on the nominal dimension.
Typical mesh wire, selvedge wire and lacing wire group
2.00 mm, 2.70 mm, 2.00 mm
2.20 mm, 2.70 mm, 2.20 mm
Minimum zinc coating weight of galfan mattress wire
2.00 mm ≥ 215 g/㎡
2.20 mm ≥ 230 g/㎡
2.70 mm ≥ 245 g/㎡
Mesh Opening 60 x 80 mm
Mattress wire diameter tolerance
2.00 mm ± 0.05 mm
2.20 mm ± 0.06 mm
2.70 mm ± 0.06 mm
Typical mattress size (L x W x H)
3 x 2 x 0.3 m with 2 diaphragms
4 x 2 x 0.3 m with 3 diaphragms
5 x 2 x 0.3 m with 4 diaphragms
6 x 2 x 0.3 m with 5 diaphragms
Width and length of the mattress as manufactured shall not differ
more than ± 5%, and the height shall not differ more than ± 10%
from the ordered size prior to filling.
Gabion Size 2 x 1 x 1 m
Gabion and mattress shall be manufactured with all components
mechanically connected at the production facility with the
exception of the mattress lid which is produced separately from the
base. All gabion and mattress shall be supplied in the collapsed
form, either folded and bundled or rolled, for shipping.
Galfan Mattress application:
1) Control and guide of water or flood
2) Flood bank or guiding bank
3) Preventing of rock breaking
4) Water and soil protection
5) Bridge protection
6) Strengthening structure of soil
7) Protection engineering of seaside area
