Concrete Shelters
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Concrete has been used in shelter construction for centuries. The ancient Romans used concrete of some form in building the structures and systems structures of their vast empire. But unlike the ancient Roman process of mixing of concrete, today’s manufacturers utilize sophisticated technology to mix, form, cure, and assemble concrete shelters.
Specific “computerized concrete batch plant” determines the concrete mix to be used per batch influenced, in part, by weather conditions that affect the mixing and curing processes. Mechanized systems transport the concrete mix to the casting bed where vibrating “beds” breaks down air pockets. Customer-selected finishes are applied to the exterior surface of the panel and then the casting bed is moved to a storage elevator to complete the curing process.
Concrete provides many protection benefits for sensitive and valuable equipment. They typically are of steel-reinforced concrete construction, dead-bolt locks, and steel doors with tamper-proof hinges. Consider some of the benefits concrete shelters provide:
- Impact resistance
- Weather-tight protection
- Vandal resistance
- Bullet resistance
- Fire resistance (typically 1.5 – 2 hours; some shelters may have higher resistance ratings)
- Earthquake resistance (Seismic Zone 4 rating)
- High wind resistance (many concrete shelters are designed to withstand windloads of up to 150mph)
- Acoustic insulation
- High thermal mass (thermal mass is a property “that enables building materials to absorb, store, and later release significant amounts of heat.”)
Concrete shelters are generally maintenance free. It doesn’t rust, warp, corrode, rot, or burn. And despite being concrete, many shelters are “lightweight” concrete structures that can be easily relocated, as needed.
Concrete shelter exteriors can be painted or dyed, stamped, or “laminated” with aggregate panels for greater aesthetic appeal.