Bar Diameter Estimation
Estimate bar diameter without coring — useful when drawings are missing or out of date.
Ferro scanning bar diameter from Corvus is part of our ferro scanning service. Without drawings, ferro scanning is the fastest non-destructive route to a bar-diameter estimate. We use the calibrated diameter feature on professional equipment and cross-check with coring on a representative sample where required.
Built around the question being asked.
A handheld induction probe passes over the surface. As the field interacts with steel, the device records bar position, depth and diameter range. Data is logged and overlaid on a slab map. Calibration is checked on every job to keep readings within manufacturer tolerance.
For bar diameter estimation specifically, the brief drives the choice of frequency, density, and reporting style. We quote a method that fits your access window, your accuracy requirement, and the downstream use of the data.
What you get
- Bar position plan with measured depths
- Estimated bar diameter table
- Cover-depth statistics versus design
- Annotated PDF report with photographs
- Digital plan in DXF / DWG
Calibrated. Qualified. Defensible.
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Calibrated kit checked at the start of every session, with the calibration record supplied in the project pack.
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Surveyors qualified for the method, signed off on the report by the person who did the work — no anonymous deliverables.
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Reporting written for the engineer or contractor who has to act on it, not for the file.
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Same-day quotations and a date in the diary. UK-wide coverage. No minimums on small jobs.
Ready to see what's beneath the surface?
Tell us what you're working on. We'll come back within a working day with a quote, a method, and a date in the diary.