Over more than one century, double-twisted hexagonal gabion meshes were widely used as mesh pads in bank protection, slope protection, riverway and rockfall protection, and satisfied the demands of all users with extremely low cost. Now, it has been agented by the government and received by individuals with the right of private ownership of lands. With the application of mesh gabions all over the USA, its technical standard and product quality have been highlighted. ASTM, the highest standard of the USA, had formulated a set of standards special for testing quality of hexagonal mesh gabions---ASTM A 975-97.
We cannot list all standard and just offer several models as reference as follows:
ASTM A 975-97
Minimum strength and performance requirements of double twisted hexagonal mesh
Gabions force executive standard of hexagonal mesh gabions
| Description of test item | Galvanized gabion | PVC Gabion |
| Parallel tensile strength of twisted mesh | 3500 lbs/ft | 2900 lbs/ft |
| Vertical tensile strength of twisted mesh | 1800 lbs/ft | 1400 lbs/ft |
| Tensile strength of side wires | 1400 lbs/ft | 1200 lbs/ft |
| Tensile strength between wire sides | 1400 lbs/ft | 1200 lbs/ft |
| Coating strength | 6000 lbs/ft | 5300 lbs/ft |
Material Requirements for Galvanized Double Twisted Hexagonal Gabion
| Mesh wire diameter | 0.120 inch |
| Side wire diameter | 0.153 inch |
| Binding wire diameter | 0.091 inch |
| Tensile force of wire | 54,000-70,000 psi soft temper accordance with ASTM A641-92 |
| Weight of galvanized wire | Determined by ASTM A-90 |
| Mesh dimension | 8 x 10cm or 3.25inches x 4.50inches |
| 0.120 inch side wire | Galvanization weight 0.90 oz / sf |
| 0.153 inch Side wire | Galvanization weight 0.90 oz / sf |
| 0.191 inch Binding wire | Galvanization weight 0.80 oz / sf |
| Galvanization grade | High-class or Ultra-high-class in accordance to ASTM B-6 Standard, see table |
| Uniform quantity of plating | Absolutely accord with ASTM A - 239 standard |
| Extensibility | larger than or equal to 12%, in accordance to ASTM A 370-92 standard |