Concrete 101: Shotcrete & Gunite Applications

Sometimes concrete doesn’t get poured — it gets sprayed. That’s the case with shotcrete (also called gunite in some applications), a method where concrete is pneumatically projected through a hose at high velocity.

What is Shotcrete?

Shotcrete is concrete or mortar conveyed through a hose and “shot” onto a surface.
It’s applied using compressed air, which compacts the mix as it hits the surface.
It can be either wet-mix (pre-mixed with water before spraying) or dry-mix (water added at the nozzle).

Where It’s Used

Swimming Pools: Creates curved, watertight shells.
Retaining Walls & Slopes: Stabilizes soil and rock faces.
Tunnels & Mines: Provides quick, strong linings for underground structures.
Architectural Features: Allows for creative, free-form shapes that are hard to achieve with traditional formwork.

Why It Matters

Shotcrete is versatile, fast, and efficient. It can be applied overhead, on vertical surfaces, or in tight spaces where standard pours aren’t practical.

👉 Next time you’re near a pool or tunnel, remember — that strong, curved surface may have been sprayed, not poured.

⚠️ Legal Disclaimer:
This blog post is intended for informational purposes only and should not be taken as professional, legal, or construction advice. Every project is unique, and conditions may vary. RLW Concrete LLC is not liable for any actions taken based on this information. Always consult with a qualified professional or attorney for your specific needs.
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