HESCO barriers is a modern Gabion primarily used for flood control and military fortifications. It is made of a collapsible wire mesh container and heavy duty fabric liner, and used as a temporary to semi-permanent levee or blast wall against explosions or small-arms. It has seen considerable use in Iraq and Afghanistan.
Hesco bastion raw material specifications:
Wire diameter | 3.85mm,4mm,5mm etc | |||
Mesh Size | 75mmx75mm etc | |||
Spring wire diameter | 3mm,4mm,5mm etc | |||
Panel Finish | Hot dipped galvanized or Galfan coated | |||
Geotextile | Heavy duty non-woven polypropylene, color can be white, beige-sand, olive green, etc | |||
Packing Wrapped with shrink film or packed in pallet |
Technical Specification for Geotextile Fabric | ||||
Color | Beige sand,Olive green,Grey | |||
Mass(g/sqm) | 250,300,350 | |||
Tensile strength | 16kN | |||
Tear Strength | 0.42kN | |||
CBR Puncture | 3.1kN | |||
UV strength retention ASTM D4355 | 50% at 500hours (5 years use life in common environment) | |||
70% at 500hours (10 years use life in common environment) |
Model | Height(M) | Width(M) | Length(M) | Number of cells |
ST-1(Mil 1) | 1.37 | 1.06 | 10 | 5+4=9 cells |
ST-2(Mil 2) | 0.61 | 0.61 | 1.21 | 2 cells |
ST-3(Mil 3) | 1.0 | 1.0 | 10 | 5+5=10 cells |
ST-4(Mil 4) | 1.0 | 1.5 | 10 | 5+5=10 cells |
ST-5(Mil 5) | 0.61 | 0.61 | 3.05 | 5 cells |
ST-6(Mil 6) | 1.68 | 0.61 | 3.05 | 5 cells |
ST-7(Mil 7) | 2.21 | 2.13 | 27.74 | 5+4+4=13 cells |
ST-8(Mil 8) | 1.37 | 1.22 | 10 | 4+5=9 cells |
ST-9(Mil 9) | 1.0 | 0.76 | 9.14 | 6+6=12 cells |
ST-10(Mil 10) | 2.12 | 1.52 | 30.5 | 5+5+5+5=20 cells |
Assembling the HESCO bastion entails unfolding it and filling it with sand, soil or gravel, usually using a front end loader. The placement of the barrier is generally very similar to the placement of a sandbag barrier or earth berm except that room must generally be allowed for the equipment used to fill the barrier. The main advantage of HESCO barriers, strongly contributing to their popularity with troops and flood fighters, is the quick and easy setup. Previously, people had to fill sandbags, a slow undertaking, with one worker filling about 20 sandbags per hour. Workers using HESCO barriers and a front end loader can do ten times the work of those using sandbags.
1. Perimeter Security and Defensing Walls