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A Bremer wall, or T-wall, is a twelve-foot-tall (3.66 m) portable, steel-reinforced concrete blast wall of the type used for blast protection throughout Iraq and Afghanistan. The Bremer barrier resembles the smaller 3-foot-tall (0.91 m) Jersey barrier, which has been used widely for vehicle traffic control on coalition military bases in Iraq ...
As a result of this both American and Soviet sites reached a state of "super hardening", involving defenses against the effects of a nuclear weapon such as spring- or counterweight-mounted (in the case of the R-36) control capsules and thick concrete walls (3 to 4 feet (0.9 to 1.2 m) for the Minuteman ICBM launch control capsule) heavily ...
A soldier examines two inverted VS-1.6 blast-resistant anti-tank landmines. Cut-away view of a VS-MK2 blast-resistant anti-personnel mine. A blast resistant mine is a landmine (intended for anti-tank or anti-personnel purposes) with a fuze which is designed to be insensitive to the shock wave from a nearby explosion.
The Concertainer, [1] known colloquially as the Hesco barrier [2] or Hesco bastion, [3] with HESCO being the brand name of the manufacturer, is a modern gabion primarily used for flood control and military fortifications. [4]
Samples of "ground granulated blast furnace slag" (left) and "granulated blast furnace slag" (right) Ground granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.
Blast walls perform best if the explosion is relatively close to the front of the wall [1] "Canopied" walls (with a top section overhanging the front face) show some improved blast protection over plane walls; A 90-degree canopy is more effective than a 45-degree one [2] Walls containing sand or water work well, and cause little damage if they fail
Blast dampers usually employ some type of blade held open with tension from a spring. The damper blades close automatically when pressure overcomes the resistance offered by the spring. Various models differ in the amount of blast protection (e.g. 1 bar/14.5 psi or lower amounts of protection) and whether they stay closed after the blast or ...
The rocket burn lasted for three seconds [7] and added 300 ft/s (91 m/s) to the bomb's speed, giving a final impact speed of 1,450 ft/s (440 m/s; 990 mph), [7] approximately Mach 1.29. [ a ] Post-war tests demonstrated that the bombs were able to penetrate a 14-foot-8-inch (4.47 m) thick concrete roof, [ 8 ] with the predicted (but untested ...