DURA-WELD GALVANIZED STEEL WELDED WIRE GABION MATTRESSES
SPECIFICATIONS - GALVANIZED & PVC COATED WELDED STEEL GABION MATTRESSES
Gabion Matresses are made of pre-galvanized 13 Gauge welded steel wire mesh with a nominal mesh size of 3" x 1.5" and supplied in various lengths and heights. Standard dimensions are: 12'x6', 9'x6' and 6'x6' having depths of 6", 9" or 12". Dimensions for heights, lengths, and widths are subject to a tolerance of 5% of manufacturer's stated sizes.
Gabion Mattresses are fabricated with the base, sides,ends, and diaphragms preassembled in the factory and shipped flat to the job site . Lids are shipped loose. Mattresses are assembled at the construction site into a rectangular unit of the specified size. Where the length of the gabion exceeds its width, the gabion are divided by diaphragms spaced on 3' centers. Diaphragms are spaced on 1.5' centers for river or steep slope installations.
Gabion Mattresses are made according to ASTM A-974-97, all wire used in the fabrication of the gabion and in the wiring operations conforms to US federal specifications QQ-W-461H and possess a soft tensile strength with a class 3 finish 5 zinc coating in accordance with ASTM A-641. Preformed steel wire spiral binders with a 3" pitch are used to assemble and interconnect empty gabions and meet the same specifications as the wire used in the mesh.
After assembly, the individual gabion units are interconnected to each other nd then filled with clean, hard stone from 3"-6" diameter. The lids are then closed and joined to the top edges of the individual gabions and diaphragms. Hog ring fasteners may be used in lieu of lacing wire for forming individual baskets and joining empty baskets together.
PVC COATED GABION MATTRESSES
The same specifications as for galvanized gabion mattresses apply with the additional polyvinyl chloride (PVC) coating which will be fuse bonded onto the welded mesh as follows:
Mesh Wire .................. core only ...... 0.087" (2.2 mm)
Spiral Binders ............. core only ......... 0.106(2.7 mm)
Lacing Wire & Twist Ties....core only ..... 0.087(2.2 mm)
PVC Coating Thickness 0.015" (0.4 mm) minimum per side