Old Changi Hospital
Existing Condition
- Concrete spalling observe, with rebar severely corroded
Surface Preparation
- Removal of loose concrete
- Cleaning of substrate and exposed rebar
Pre-Repair Treatment
- Primer (Hydro Seal) applied to enhance bond and provide rebar protection
Before – Deteriorated Condition
- Severe concrete cover spalling
- Advanced reinforcement corrosion
After – Post-Repair Condition
- Concrete cover reinstated in trial zone
- Patching thickness > 60 mm achieved
- Sound encapsulation of rebar
