Large concrete areas such as slabs, beams, columns, and walls require a concrete structural survey opposed to regular scanning.
Xradar is able to scan large areas and produce accurate, detailed surveys, along with steel reinforcement drawings which will help you study the carry capacity of a concrete slab.
Our industry leading techniques are able to produce precise drawings of rebar locations, cover measurements, diameters, and slab thickness.
We can produce plans in any format (DWG, PDF etc.) to show:
- Rebar spacing, cover, diameters and exact locations
- Concrete thickness
- Honeycombing or voids
Survey for concrete wall slab thickness
Survey for reinforcement cover on wall slab
Ideal for thick concrete structures, Concrete Ultrasound is a recent development in ultrasonic non-destructive testing (NDT).
A short pulse is produced by hitting the surface with a small metal object, then shear wave reflections are recorded. A two-dimensional array of transducers then generates an image.
Applications and Advantages
One of the main applications of Pulse echo is the detection of voids, along with detecting any pre-stressed tendons, conduits and other partially hollow objects.
The major advantages of our Pulse Echo services are its ability to penetrate concrete to considerable depth – up to 2.5m, even in reinforced concrete. Even more importantly, it can be used to detect objects through dense surface rebar mat or other heavily reinforced structures which would interfere with conventional GPR.
- Voids & Honeycombing
- P.T Cables & Hollow Conduits
- Steel Reinforcement (Rebar)
- Concrete Thickness up to 2 meters (6.5 feet)
The MIRA tomograph by ACSYS, manufactured in Russia, is the most advanced instrument of this kind today, thanks to its 12×4 transducer with dry-contact ceramic tips and a complex SAFT signal processing. Shear wave is used due to its higher sensitivity to defects and its slower velocity (2500 m/s instead of 4000 m/s for the compression wave).