Carbon Fiber Magazine Bunker Repair

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A typical Earth Covered Magazine bunker. Photo Credit: US Army Corps of Engineers

Reviving Earth Covered Magazine (ECM) Structures: Strengthening and Repair

Earth Covered Magazines (ECMs) are essential storage facilities used by the Department of Defense to safely house ammunition and explosives. While not originally built to withstand large-scale explosions, a well-maintained ECM can significantly reduce the impact of smaller detonations. In this case, the structure had developed cracks in the floor due to foundation movement and poor sub-grade conditions. These cracks spread over time, affecting the walls and ceiling, leading to leaks, spalling, and potential safety hazards.

To restore the bunker’s integrity, HJ3’s CarbonSeal™ carbon fiber system was selected. The process began with precision saw cuts along all cracks in the floor and walls. Then, HJ3’s patented carbon fiber strips were inserted into the cuts and bonded with epoxy. Afterward, the interior was cleaned using abrasive blasting to remove loose material and debris. A cementitious grout was applied to smooth the surface before the CarbonSeal™ system was fully installed on the walls and ceiling.

The entire repair was completed in just one day, saving both time and money compared to a full replacement. This approach not only preserved the existing structure but also helped reduce environmental impact. By avoiding the need for new concrete and steel, the project prevented over 4 tons of construction waste from going to landfills, conserved nearly 250,000 gallons of water, saved 33,000 kWh of energy, and reduced carbon dioxide emissions by more than 8 tons.

If you're looking for a reliable and sustainable way to repair your Earth Covered Magazine or any other concrete structure, HJ3's CarbonSealâ„¢ system offers an efficient and eco-friendly solution. Contact us today to learn more about how we can help protect and extend the life of your critical infrastructure.

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The bunker's extensive cracking threatened its structural integrity.

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The CarbonSeal carbon fiber is applied to the prepared walls.

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