Advanced Data Analytics and Reporting

From readings to findings

• Radar. Every scan is processed for the concrete's actual velocity, migrated, and read line by line; hyperbolae are picked, depths calculated and targets classified, with the confidence of each noted. Automated picking is used to speed the work, never to replace the reading.
• Ultrasonics and thickness. Pulse velocity and pulse echo results are checked against the calibration and the element geometry; thickness readings are set against nominal section and the loss and minimum calculated.
• Cover, carbonation and half-cell. Read together on the element drawing, so the zones at risk are ranked by the combination rather than by one reading.
• LiDAR, photogrammetry and sonar. Registered, checked for tolerance and used as the geometry the findings are placed on. See digital twin and 3D modelling.
• Repeat surveys. Compared on the same grid, so the report gives the change and the rate, not just the current state.

What every NDTScan report contains

• Scaled plans of every scanned, gauged or tested area with the findings drawn in, and photographs referenced to them.
• Tables of depth, cover, thickness, velocity or strength per area, with the tolerance that applied.
• The method, equipment, settings, calibration and the standard applied, so a second engineer can see how each reading was obtained.
• The confidence attached to each finding, and what it must not be relied on for.
• CAD overlays, point clouds and data files in the formats the engineer works in, where they were part of the scope.
• Where the engineer wants the surveyor's view, it is given as a view, with the evidence beside it. Repair design sits with the engineer.

The specialist who scanned the structure writes the report; no report is assembled by someone who never saw the site. It follows within an agreed number of working days.

What the report does not claim

A reading that the method could not support is reported as such, not rounded up to a finding. Radar does not give bar diameter; a rebound hammer alone does not give strength; sonar does not give crack width; a model measures to a tolerance. Reports that promise otherwise promise more than the instruments can give, and NDTScan's do not.

Working with your systems

Findings are delivered in the formats asset teams use: CAD overlays on the client's drawings, point clouds and meshes for BIM, tables for asset registers, and repeat-survey comparisons for integrity programmes. The service runs across all of NDTScan's survey work and is described alongside the equipment; NDTScan attends from Oxford anywhere in the UK, usually within one to two working days and same day where the diary allows.