TERRA AQUA WIRE ENCLOSED RIP RAP MESH
Scope:
The Terra Aqua wire enclosed rip rap mesh is a double twisted hexagonal galvanized steel wire mesh manufactured specifically to confine rip rap revetments. The mesh shall be of non-raveling construction and consist of a uniform double twisted hexagonal mesh pattern. Non-raveling 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 or broken. The 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 for similar wire, one gauge smaller in diameter.
Terra Aqua double twisted mesh minimum strength requirements
| Test Description |
Galvanized mesh |
PVC coated mesh |
| Tensile strength of wire mesh parallel to twist |
3500 lbs/ft |
2900 lbs/ft |
| Tensile strength of wire mesh perpendicular to twist |
1800 lbs/ft |
1400 lbs/ft |
| Connection to selvedges |
1400 lbs/ft |
1200 lbs/ft |
| Panel to Panel connection |
1400 lbs/ft |
1200 lbs/ft |
| Punch strength of mesh |
6000 lbs/ft |
5300 lbs/ft |
ASTM A975-97
All Terra Aqua Gabion material is manufactured according to ASTM A975-97 guidelines for Double Twisted Hexagonal Mesh Gabions.
| Diameter of mesh wire |
0.120 inches |
| Diameter of selvedge wire |
0.153 inches |
| Diameter of lacing wire |
0.091 inches |
| Coating of wire |
Finish 5 class 3 zinc coating ASTM A-641 tested in accordance with ASTM A370-92 |
| Tensile of wire |
54,000-70,000 psi soft temper Accordance with ASTM A641-92 |
| Weight of zinc coating of wire |
Determined by ASTM A-90 |
| Mesh opening size |
8x10cm or 3.25inches x 4.50inches |
| Mesh wire 0.120 inches |
Weight of zinc coating 0.85 oz/sf |
| Selvedge wire 0.153 inches |
Weight of zinc coating 0.90 oz/sf |
| Lacing wire 0.091 inches |
Weight of zinc coating 0.80 oz/sf |
| Grade of zinc coating of wire |
High grade or special high grade in accordance with ASTM B-6, Table 1 |
| Uniformity of coating of wire |
Determined by ASTM A-239 |
| Elongation |
Not less than 12% in accordance with ASTM A370-92 |
All of the above wire diameters are subject to a tolerance limit of 0.004 in accordance with ASTM A-641.
Mesh Roll Sizes & Dimensions
| WIDTH of mesh roll |
LENGTH of mesh roll |
| 3’ |
25’ minimum - 300’ maximum |
| 6’ |
25’ minimum - 300’ maximum |
| 9’ |
25’ minimum - 300’ maximum |
| 12’ |
25’ minimum - 300’ maximum |
| 15’ |
25’ minimum - 300’ maximum |
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