Pool
Rebar Cage
The steel reinforcement grid installed inside the excavated pool hole before gunite or shotcrete is sprayed.
The rebar cage is what gives a gunite shell its tensile strength. Arizona pools typically use #3 or #4 grade-60 steel tied on 12-inch centers, with double bars on the bond beam, steps, and any raised features.
A poorly-tied cage leads to cracking, leaks, and shell failure. Inspect the cage before gunite is sprayed: bars should be plumb, evenly spaced, and lifted off the dirt on chairs so they're fully encased in concrete.
Written and reviewed by AE Outdoor Living — Arizona ROC-licensed pool & outdoor living contractor.
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