Case Study: US103: Caustic Saturated Concrete Repair
Couch pit before repair.
Stainless steel mesh to provide anchor for Renderpol.
Completed repair coated with Corroglass AR4.
Corrocoat’s ability to engineer a repair, manufacture the required materials, and carryout the application allowed for a quick and permanent repair. Corrocoat’s sole-sourced solution reduces project lead time while eliminating opportunity for misunderstandings or conflicting interests between different firms.
A tile lined concrete pit submerged at a pH of 14 required immediate repair and refurbishment. The repaired was required to be completed in the short term to prevent further damage and needed to be completed over a 36 hour shut down to limit downtime. Adhesion to the substrate was not possible due to the concrete being saturated with caustic, further complicating the repair process.
The images to the left shows the the existing condition of the concrete, whilst the one below shows the finished repair work that was achieved by the following process:
- Abrasive blast the concrete and onto the surrounding tile to allow the repair to tie into the adhered tile.
- Attached stainless steel mesh to the concrete with
- Apply Corrocoat Renderpol as a plaster over the mesh to provide a mechanical connection to the concrete.
- Prime the tiles with Polyglass PPA prior to spraying all prepared surfaces with Corroglass AR4.