A water gel explosive is an explosive mixture (slurry) consisting of a saturated aqueous solution of oxidizers and/or fuels.[1] Tovex is an example of a water gel explosive.
Composition
All slurries contain a gelatinizing agent and their consistency varies from easily pourable to hard solid. Polyvinyl alcohol, guar gum, dextran gums, urea-formaldehyde resins are the typical gelling agents.
Advantages and uses
They tend to be less toxic and are less hazardous than dynamite to manufacture, transport, and store.[2] Slurries are also less expensive compared to conventional explosives.
They are frequently used as cartridge explosives because they are much easier to load into large casings. With water gel explosives, filling a bomb is merely a matter of pouring the material into the casing. Traditionally explosives are ordinarily cast into the casing. This process is laborious and the charge may begin to shrink creating multiple voids. A final advantage of slurry is that it can be stored in non-explosive component form and sensitized into field-manufactured explosive as it is needed. The explosive may be sensitized by the addition of gas, metal powder, or another explosive such as TNT,
References
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