CASE STUDY

Corroded Slab Repair With SPiRe®+, Atlantis Lodge, North Carolina

The coastal surroundings of the Atlantis Lodge in Pine Knoll Shores, North Carolina had corroded the building's prestressed concrete slabs. SPiRe®+ FRP panels repaired them, adding reinforcement and an impervious barrier with no new reinforcing bars.

PRODUCT: SPIRE®+
APPLICATION: SLABS
STRUCTURE: OCEANFRONT LODGE

GET A SLAB REPAIR CONSULTATION ALL PROJECTS

Finished SPiRe+ panels on the underside of a prestressed slab at the Atlantis Lodge, Pine Knoll Shores, North Carolina

No rebar needed: the panels supply the reinforcement

equivalent steel bar size: No. 6 Gr. 60
equivalent bar spacing: 3.5 in.
reinforcing bars added: 0
lodge in Pine Knoll Shores, NC: Oceanfront

Project Details

BUILDING: Atlantis Lodge, an oceanfront lodge
LOCATION: Pine Knoll Shores, North Carolina
STRUCTURE: Prestressed concrete slabs
CAUSE OF DAMAGE: Corrosion from the building's coastal surroundings
QUAKEWRAP® SYSTEM: SPiRe®+ stay-in-place FRP panels
REINFORCEMENT: Panels equivalent to No. 6 Grade 60 steel bars at 3.5 in. spacing, so no reinforcing bars were needed

PROJECT VIDEO

Repairing a Corroded Slab in a Coastal Community

Plays from YouTube

01 · THE CHALLENGE

Salt Air Corroding Prestressed Slabs

The Atlantis Lodge sits on the oceanfront in Pine Knoll Shores, North Carolina. Its coastal surroundings had corroded the building's prestressed concrete slabs, which needed a repair that would hold up in the same salty environment.

02 · THE SOLUTION

SPiRe®+ Panels Replace the Rebar

SPiRe®+ panels were installed on the underside of the slabs, and grout was injected through holes drilled from above, leaving a smooth finished surface.

The panels provide reinforcement equivalent to No. 6 Grade 60 steel bars at 3.5 in. spacing, which eliminated the need for any reinforcing bars. They also form an impervious barrier for a long service life.