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PRODUCTS
Name：
Hexagonal Gabion Baskets
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发布时间 ：
2019/03/04 17:39
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Product description
Gabion box hexagonal gabion baskets galvanized Zinc coating 245gsm for river protection
A gabion is a cage, cylinder, or box filled with rocks, concrete, or sometimes sand and soil for use in civil engineering, road building, military applications and landscaping.
For erosion control, caged riprap isused. For dams or in foundation construction, cylindrical metal structures are used. Gabion is woven of hexagonal shaped, double twisted steel wire - with zinc galvanization or PVC coating.
It is filled with stones at the project site to form flexible, permeable, and monolithic structure which acts to slow down water flow in drainage ditches or prohibit storm water runoff channels.
Mesh Aperture
As per ASTM A975, gabion shall be manufactured with an 8 by 10 mesh type having a nominal mesh opening of 83 by 114 mm (3.25 by 4.5 in.).
Dimensions are measured at right angles to the center axis of the opening ( D = 83 mm) and parallel to the twist along the same axis. Tolerance: +/- 10 %.
Raw Material of Gabion - Iron Wire
1. Tensile Strength of wire
Regularly the material for gabion is low carbon steel wire (mild steel). Wire tensile strength is correspondingly 350-550KN/m2. Gabion netting tensile strength is 50KN/M.
2. Surface treatment of wire
Surface Finishing is very important for Gabion. As it matters directly with corrosion resistance of Gabion, especially when environmental condition is severe (such as in saltwater).
• Type 1 - Zn Coating, class 3 (conforming to ASTM 641/ 641M)
• Type 2 - (Zn-5AL-MM) coating (Zn 5 % Aluminum & mischmetal alloy) which is called Galfan (Zn-10Al-MM wire is also popular).
• Type 3 - Mesh wire /lacing wire /stiffeners is Zn coated / or Galfan, plus PVC.coating.
• Type 4 - Aluminum coating conforming to ASTM A809.
* Type 1/2/3 are the most regular types.
* Corrosion resistance comparision: Zn-10AL-MM > Zn-5AL-MM > Zn coating
Gabion box / baskets
Gabion box is made of woven hexagonal shaped, double twisted steel wire mesh - with zinc galvanization or PVC coating.
It is filled with stones at the project site to form flexible, permeable, and monolithic structure which acts to slow down water flow in drainage ditches or prohibit storm water runoff channels. Also it can be used along high way / railway to prevent rock falling down, or as retaining walls.