Material containment system

A material containment system comprising, in combination,

• a substantially gas impervious concrete vault including at least two sections, said sections abutting along joints,
• means for providing a substantially gas and liquid impervious seal at said joints;
• storage means disposed within said vault for receiving a quantity of material,
• inert gas charging means for providing an inert gas atmosphere within said vault at a pressure at least equal to atmospheric pressure, and
• means for providing access to the interior of said vault including gas impervious seal means for sealing said access means.

A material containment system comprising, in combination,

• a vault defining an interior, said vault comprising at least two juxtaposed sections, said juxtaposed sections mating along opposed complementary joints,
• means for maintaining said juxtaposed sections in juxtaposition,
• means for providing a substantially gas impervious seal at said joints of said sections,
• means for providing access to said interior of said vault, said access means including a opening in said vault, a gas impervious cover for said opening and seal means for providing a gas tight seal between said opening and said cover,
• storage means disposed within said interior for receiving and storing a quantity of material,
• inert gas charging means in communication with said interior of said vault for maintaining said interior substantially free of oxygen, and
• leak detection means for detecting the egree of material from said storage means.

A material containment system comprising, in combination,

• a substantially gas impervious vault defining an interior volume,
• storage means disposed in said interior volume for receiving a quantity of material,
• inert gas charging means for providing an inert gas atmosphere in said interior volume at a pressure at least equal to atmospheric pressure,
• means for providing access to said interior volume of said vault;
• and
• seal means operably disposed between said vault and said access providing means for providing a gas impervious seal therebetween.