For this project, we used pre-cast concrete to quickly assemble and install a secure, underground concrete bunker. Pre-casting concrete affords the best quality, because masonry units can be pre-fabricated to exacting, repeatable dimensions sizes and cured in temperature and humidity-controlled environments. We used our own equipment for excavation and site preparation, and formed the units at our local plant. We then hired a crane for final assembly, and Christened the building with a salutatory firing of the canons!
The Canon, Primed for Discharge
The Big Gun Goes Off!