1. What is Corrosion Surveying?
Corrosion Surveys are testing methods CSI use to determine the causes and the action of corrosion, particularly in steel reinforcement. These methods include:
- Visual Inspection
- Identifying Concrete Cover (through scans or physical measurement)
- Chloride Content Test
- Testing for Carbonation of Concrete: Test to Standards: NDIS 3419 and BS EN 14630
- Rebar Corrosion Determination – Half-cell Potential Testing: Test to Standard: ASTM Standard Test Method for Corrosion Potentials of Uncoated Reinforcing Steel in Concrete
2. When would you use Corrosion Surveying?
When you need to know the condition of reinforcement and its susceptibility to corrosion. e.g. in a basement wall panel where cracks have developed, or in a bridge beam exposed to sea water
3. What are the Benefits of Corrosion Surveying?
- The variety of methods ensure the corrosion survey is conducted to a high standard
- Can help identify problem areas before damage occurs – saving the client money
- If repair work is required, due to corrosion, the client can determine which areas are
high priority rather that undertaking full-scale repairs