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Help CenterPVC Coated Gabion Mattress, Green Wire Gabion Box
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PVC coated gabion mattress, green wire gabion box
The Reno mattress is a structure made of Mesh 6 hexagonal
double twisted wire mesh type as per ASTM A975-97 (Fig. 1
and 2). Reno mattresses are filled with stones at the project
site to form flexible and permeable, monolithic structures such
as river bank protection and channel linings for erosion control
steel.
The steel wire used to manufacture the mattress is heavily
zinc-coated soft temper steel. A PVC coating is then applied to
provide added protection for use in aggressive environments
where soil or water are acidic: in salt or fresh water, or
wherever the risk of corrosion is present. The PVC coating has
a nominal thickness of 0.50 mm. The standard combinations of
mesh and wire are shown in Tab. 2.
In order to reinforce the structure, all mesh panel edges are
selvedged with a wire having a greater diameter (Tab. 3).
Reno mattresses are divided into uniformly partitioned cells by
internal diaphragms.
Dimensions and sizes of Reno mattresses are shown in Tab. 1.
The material is supplied from an ISO 9001 certified factory.
Wire
All tests on wire must be performed prior to manufacturing the
mesh.
1. Tensile strength: the wire used for the manufacture of
Reno mattresses and the lacing wire, shall have a tensile
strength of 350-500 MPa according to EN10223-3.
Wire tolerances (Tab.3) are in accordance with 10223-3.
2. Elongation: Elongation shall not be less than 12%, in
accordance with EN10016-1 and EN10016-2.
3. Zinc coating: minimum quantities of zinc shown at Tab.3
meet the requirements of EN10244-2 Class A.
4. Adhesion of zinc: the adhesion of the zinc coating to the
wire shall be such that, when the wire is wrapped six turns
around a mandrel having four times the diameter of the
wire, it does not flake or crack when rubbing it with the bare
fingers, in accordance with ASTM A641-97.
P.V.C. (Polyvinyl Chloride) Coating
The technical characteristics and the resistance of the PVC to
ageing meet the relevant standards. The main values for the
PVC material are as follows:
Specific gravity: 1.30-1.35 kg/dm3 in accordance with ASTM
D792 Table 1;
Hardness: between 50 and 60 Shore D, according to ASTM D
2240;
Tensile strength: not less than 20.6 MPa, according to ASTM
D412-92;
Modulus of elasticity: not less than 18.6 MPa, in accordance
with ASTM D412-92;
Abrasion resistance: the percentage of the weight loss shall
be less than 12%, according to ASTM D1242-92.
Creeping corrosion: max. penetration of corrosion of the wire
from a square cut end shall be 1 in. (25 mm) when the
specimen has been immersed for 2,000 hours in a 5% solution
HCl (hydrochloric acid 12 Be).
The accelerated ageing tests are:
Salt spray test: test period 3,000 hours, test method
ASTM B117-94;
Exposure to UV rays: test period 3,000 hours at 145°
F (63°C), test method ASTM D1499-92a and ASTM
G23-93 apparatus Type E;
Brittleness temperature: no higher than 15°F (- 9°C), or lower
temperature when specified by the purchaser, when tested in
accordance with ASTM D746.
The properties after ageing tests shall be as follows:
Appearance of coated mesh: no cracking, stripping or air
bubbles, and no appreciable variation in color;
Specific Gravity: variations shall not exceed 6%;
Hardness: variations shall not exceed 10%;
Tensile strength: variations shall not exceed 25%;
Modulus of elasticity: variations shall not exceed 25%;
Abrasion resistance: variations shall not exceed 10%;
Brittleness temperature: shall not exceed + 64°F (+18°C).
All sizes and dimensions are nominal.
Tolerances of ± 3% of the width, length, and 2.5 cm of the
height of the Reno mattres shall e permi tted.
Lacing Operations
Lacing operations can be made by using the tools shown in
Fig.5. stainless steel rings having the following
specification can be used instead of lacing wire (Fig.4):
Stainless steel rings for pvc coated products
• diameter: 3.05 mm, ASTM A313, Type 302, Class I
• tensile strength: 1530-1745 MPa, ASTM A313-92.
Spacing of the rings must not exceed 200 mm (Fig.3)
ntrolling and leading the river and flood.
2.flood discharge and lead flow
3.rock fall defending.
4.preventing the water and soil lost.
tecting the bridge.
6.reinforce fabric.
7.seashore recovery project.
8.seaport project.
packing:50-100sets of gabion box in a flat bundles or packed on pallets
shipping:20days/3*40ft containers
Quantity Request
When requesting a quote, please specify:
• size of units (length x width x height, see Fig.1),
• type of mesh,
• type of coating
EXAMPLE: No. 100 Reno mattresses 3x2x0.23 m - Mesh type
6—Wire diam. 2.2/3.2 mm- Galvanized+PVC coated.
- any size of gabion box according to the request of customers
- quotation within 24 hours( EXW,FOB,CIF OR DOOR TO DOOR PRICE)
- free samples
- OEM is avaliable
- you may add me the following chatting methods: skype:nicole53058 QQ:1963936822 WhatsApp:+86 133 8361 1620 Wechat: 13383611620
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