It is often necessary to test concrete structures after the concrete has hardened to determine whether the structure is suitable for its designed use. Ideally such testing should be done without damaging the concrete.
We have following equipment for same.
- Ultrasonic Pulse velocity test- mainly used to measure the sound velocity of the concrete hence the compressive strength of the concrete.
- Rebound Hammer test- used to evaluate the surface hardness of concrete hence the compressive strength of the concrete.
- In-situ concrete core extraction (semi destructive) evaluate the density, porosity and compressive strength of the concrete.
- Half-cell potentiometer test- used to detect the corrosion potential of reinforcing bars in concrete.
- Carbonation depth measurement test- used to determine whether moisture has reached the depth of the reinforcing bars and hence corrosion may be occurring.
- Proof meter (cover testing) - used to measure the distance of steel reinforcing bars beneath the surface of the concrete and also possibly to measure the diameter of the reinforcing bars.