Wire and Mesh Specifications

WIRE ZINC COATED:

All tests on the wire are performed prior to making of the mesh.

Tensile strength: all wires used for the manufacture of gabions, have a maximum tensile strength of 500 Ν/mm2 equal with 500 MPa according to ΕΝ 10223-3 and ASTM A641/A641M-03.

Elongation: the test is made on a sample of no less than 300mm long.  Elongation is not less than 12%, on a specimen of minimum 250mm long according to ΕΝ 10223-3 and ASTM A370-97a.

Zinc coating: the amount of zinc is determined in accordance to ΕΝ 10244-2 (Class A)- successor of BS 443:1982- and ASTM A641/A641M-03, Class III soft temper coating.

Adhesion of zinc coating: the adhesion of the zinc coating to the wire- 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, according to ΕΝ 10218-1, ΕΝ 10244-1 and ASTM A641/A641M-03.

WIRE ZINC 95% ALUMINIUM 5% COATED- TYPE GALFAN:

The same standard applies as or Zinc coated wire and the values are common. It should be noted that Zn95% Al5% wire is darker than plain zinc coating as a result of the aluminium alloy.

Research, laboratory tests and applications of the wire testify its superiority again zinc coated wires, as its corrosion performance is outstanding and has roughly triple life time than the zinc coated wire.

WIRE POLYVINYL CHLORIDE COATED:

The properties of the PVC coating are according to ΕΝ 10245-2 and ASTM A975-97 paragraph 8.2. 

PVC durability is determined with laboratory testing – exposure on artificial light (ISO 4892-1), salt spray test (ISO 9227), resistance to humidity (ISO 6270), resistance to humid atmospheres containing sulhur dioxide(ISO 3231) and exposure to natural weathering (ISO 4607)- as specified in the ΕΝ 10245-1.

In degeneration test by ultraviolet light and attrition, PVC coating has minimum calculated endurance 60 years when tested according to UL 746B (Polymeric Material—Long Term Property Evaluation) for ageing test according to ASTM A975-97

DOUBLE TWISTED -HEXAGONAL- WIRE MESH GABIONS (6 x 8 TYPE):

Mesh opening: Nominal Dimension D = 62 mm

Wire mesh: Diameter – 2.20mm to 2.70 mm

Selvedge wire: Diameter – 2.70mm to 3.40 mm

DOUBLE TWISTED -HEXAGONAL- WIRE MESH GABIONS (8 x 10 TYPE):

Mesh opening: Nominal Dimension D = 83 mm

Wire mesh: Diameter - 2,70mm or 3,00 mm

Selvedge wire: Diameter - 3,40mm or 3,90 mm

LACING WIRE AND REINFORCEMENTS:

Lacing wire: Diameter – 2,50 mm

Cross tie/stiffener wire: Diameter – 2,50 mm

Reinforcements: Diameter – 3,90 mm

 HEXAGONAL MESH PROPERTIES:

Mesh Tensile Strength have at least strength equal to 42,3 kN/m while tested according to ASTM A975 section 13.1.1

 Punch Test Resistance has at least resistance of 23,2 kN while tested according to ASTM A975 section 13.1.4

 Connection to selvedge have minimum resistance of 17,5 kN/m while tested according to ASTM A975.