1. What is Concrete Scanning?
Concrete scanning is a non-destructive testing method used by CSI primarily to determine the details of steel reinforcement within structures.
CSI use two scanners:
- Ground Penetrating Radar (GPR)
The GPR scanner emits electromagnetic waves into a structure’s subsurface. Changes in the material’s properties, e.g. a change from concrete to steel, cause the waves to reflect. The signals produced by reflected waves allow us to determine details within the structure, such as centre spacing, cover, orientation and general layout of the reinforcement.
The ferroscanner emits a magnetic field into the subsurface. Asymmetric changes in the field allow us to identify the cover and diameter of reinforcement.
Reinforcing Verification Reporting:
CSI provides non-destructive Concrete Scanning for structural analysis for locating reinforcing bars, pre-tensioning tendons, plastic pipes, electric cables and cavities in concrete at depths of up to 300mm.
CSI Reports Generally Contain:
Marked up drawings, which show where the scans were carried out.
Photo collage showing the scanned locations.
2D & 3D images and data associated with the locations scanned.
Description of reinforcing verified; with a full conclusion.
Reinforcing seismic tie bar connection location: The two scanners mentioned below can find bar connection detail.
Hilti PS200 Ferroscanner: Determines the position of reinforcement, measures depth of cover and estimates the diameter of rebars in a non-destructive manner.
Hilti PS1000 GPR Scanner: Designed to provide a 3D image of the location of reinforcement bars and other metallic / non-metallic objects in concrete up to a depth of 300mm.
To learn more, ask about our concrete scanning services today by getting in touch.
2. When would you use Concrete Scanning?
Concrete scanning can be used to determine the size and layout of steel reinforcement within concrete elements such as beams, columns etc., to help determine their structural capacity – so decisions can be made without invasive investigation.
3. What are the Benefits of Concrete Scanning?
- Scanning is non-destructive
- Our scanners are portable, so testing can be carried out in remote areas
- GPR and ferroscan are complementary – both technologies can be used in
conjunction for even better results