Item Brochure

Gabion Specification (PVC)
Mesh Formation:
The double twisted hexagonal wire mesh shall have deformability sufficient to permit minimum
of mesh elongation equivalent to 10% of the unstretched length of the mesh test section
without reducing the gauge or the tensile strength of the individual wire strands to values less
than those for similar wire, one gauge smaller in diameter.
Non-Raveling:
The wire mesh is to be fabricated in such a manner as to be non raveling. This is defined as the
ability to resist pulling apart at any of the twists or connections forming the mesh when a single
wire strand in a section of mesh is cut.
Gabion Fill:
The stone fill material used for filling the gabion units shall be clean, hard stone with pieces
ranging from 4-8 inches on the greatest dimensions. Stone filling shall not exceed 24 inch
vertical drop above the gabion basket. All effort shall be made to ensure that the stone fill
material utilized in the design of the structure match the stone fill used in constructing the
gabion structure.
Assembling and placing:
a) Each gabion shall be assembled by tying or fastening all untied edges. The binding
wire shall be tightly looped around every other mesh opening along the seams in
such a manner that single and double loops are alternated. Alternative fasteners
may be used in lieu of lacing wire. The alternative wire fasteners shall be applied
at approximately 4” to 6” intervals on all vertical seams. No less than 3 fasteners
per one foot on any given vertical or horizontal seam.
b) A line of empty gabions shall be placed into position according to the contract
drawings. Lacing wire or alternative fasteners shall be used to secure each unit to
the adjoining one along the vertical reinforced edges and the top selvedges. An
approved corner closure tool shall be used to adjoin adjacent gabions to insure a
tight, neat seam and minimize gabion wire joint deformation. The base of the empty
gabions placed on top of the filled line of gabions shall be tightly wired or fastened
to the latter at front and back. The lid shall be secured with an approved closure
tool
to insure proper closure without excessive mesh deformation.
c) To achieve optimum alignment and finish for retaining walls, a minimum amount of
stretching may be required.
d) Connecting wires shall be inserted during the filling operation as follows: Install
according to manufacturers instructions every 1’ vertical lift of the gabion unit.
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