Ferroscanning
- Sandy Dulai
- Mar 4
- 2 min read
Updated: Oct 23

KEY FEATURES OF FERROSCANNING
- This is the preferred method when the sides of the opening are too short in relation to the depth of the material being cut. The opening is formed by drilling consecutive holes to suit the dimensions. 
- This method allows us to create an opening of almost any shape or size. 
- Diamond drilling produces minimal dust, so stitch drilling using a diamond drill is the best choice for working in a sterile or clean environment such as a hospital. 

WHAT IS FERROSCANNING?
The machine we use is the Hilti PS200 Ferroscanner which can provide information on your RC structure without the need for intrusive surveys to expose rebar patterns, and the subsequent making good that goes with it.
A Ferroscan survey detects the presence and position of rebar within a reinforced concrete element. It can also tell bar diameters, spacing and concrete cover and is effective up to a depth of 140mm. It can detect other cast-in metal objects, but cannot detect non-metallic objects.
We can offer a survey with a full written report including imaging (this has to be completed off-site), or we can offer a quick scan on-site, if you only wish to mark bar positions on a slab or wall, for example.

HOW DOES FERROSCANNING WORK?
A Ferroscan survey detects the presence and position of rebar within a reinforced concrete element. It can also tell bar diameters, spacing and concrete cover and is effective up to a depth of 140mm. It can detect other cast-in metal objects, but cannot detect non-metallic objects.
| Point | x: [mm] | y: [mm] | Cov : [mm] | Bar: [mm] | Orientation | Usage | 
| 1 | 96 | 60 | 40 | 12 | Horizontal | Measurement | 
| 2 | 246 | 67 | 40 | 14 | Horizontal | Measurement | 
| 3 | 546 | 58 | 42 | 25 | Horizontal | Measurement | 
| 4 | 589 | 57 | 44 | 28 | Horizontal | Verify only | 
| 5 | 117 | 163 | 42 | 6 | Horizontal | Measurement | 
| 6 | 267 | 165 | 42 | 8 | Horizontal | Measurement | 
| 7 | 396 | 167 | 40 | 6 | Horizontal | Measurement | 
| 8 | 567 | 165 | 47 | 12 | Horizontal | Measurement | 
| 9 | 117 | 251 | 43 | 6 | Horizontal | Measurement | 
| 10 | 353 | 251 | 43 | 8 | Horizontal | Measurement | 
| 11 | 589 | 258 | 42 | 16 | Horizontal | Verify only | 
| 12 | 524 | 396 | 42 | 6 | Horizontal | Measurement | 

Speak to a member of our experienced team for more information on how Mohan Building Services can support your next project.







