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The protective coating must be resistant to the destructive effects of immersion in acidic, salt, or polluted water, exposure to ultraviolet light and abrasion and shall retain these characteristics after a period of not less than 3,000 hours under tests in accordance with ASTM G-23.
The same specifications for galvanized gabions apply with the additional polyvinyl chloride (PVC) coating which will be fuse bonded onto the welded mesh as follows:
Gabion Size(m) | Mesh Model | |||||
8x10cm | 6x8cm | |||||
Length | Width | Height | PVC coated | PVC coated | ||
Mesh wire diameter | Gal. weight | Mesh wire diameter | Gal. weight | |||
2m | 1m | 1m | 2.7mm | >245g/m2 | 2.0mm | >215g/m2 |
3m | 1m | 1m | Selvedge wire diameter | Gal. weight | Selvedge wire diameter | Gal. weight |
4m | 1m | 1m | 3.4mm | >265g/m2 | 2.7mm | >245g/m2 |
6m | 1m | 1m | Lacing wire 2.7mm | Lacing wire 2.0mm |
Resistance of The Coating
The protective coating must be resistant to the destructive effects of immersion in acidic, salt, or polluted water, exposure to ultraviolet light and abrasion and shall retain these characteristics after a period of not less than 3,000 hours under tests in accordance with ASTM G-23.
PVC Coated Gabion Applications:
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.