Concrete Scanning

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Radio-Tech are the most accomplished and experienced providers of concrete scanning radar investigation services in Victoria with thousands of hours of experience investigating buildings and a variety of other structures nationwide.
High-resolution radar for concrete inspection is an invaluable tool that provides high levels of safety and improves operational efficiency.
Radio-Tech’s slab scanning is usually effective up to a depth of around 400mm, if deeper penetration is required there is the option for us to employ the ground radar system using a selection of interchangeable antennas, depending on the size of the target.

Typical Targets For Concrete Scanning

  • Rebar pattern identification, location and depth.
  • Post tension cable locations
  • Void/Cavity location
  • Metallic and non-metallic pipe and cable location
  • Structural ribbing position
  • Embedded power cable location

Typical Applications

  • Detection of frequency and position of ligatures in structural beams.
  • Column analysis for ligature position and depth.
  • Non-Destructive testing for construction failure analysis.
  • Reinforcing steel positioning prior to drilling/coring.
  • Slab-on-grade analysis, (not possible with X-Ray)
  • Refrigeration line detection for supermarkets prior to concrete cutting.
  • Assist with establishing load bearing capacity in suspended slabs.
  • Bridge deck analysis.
  • Construction quality assurance



Concrete Scanning

Concrete Radar Technician 3D mapping a section of vertical wall slab to establish construction details such as slab thickness , reinforcing bar position and depth, areas of voiding or low compaction.


(Click to enlarge the picture)

Concrete Scanning in 3D Concrete Scanning data Concrete Scan to show post tension cables
Radargram image of steel reinforcing mesh in concrete slab showing position and depth, the whole depth of the slab was analysed using a 3D function to check for embedded pipes and cables prior to coring works. A 3D image after processing concrete scanning on a suspend slab Typical radar “line scan” profile showing two Post Tension tendons at 150mm cover in a suspended floor slab.

Samples Of Typical Applications

Concrete Scanning Structural Radar (concrete scanning) Structural Radar (concrete scanning) Structural Radar (concrete scanning)
Tarago River Reconnect Project Quality assurance inspectionon a section of a large concrete water tank to assure that no voids had formed during the pour. MCG Brunton Ave Extension Finding Post Tension cables, Ligatures and reinforcing steel prior to coring works.
Structural Radar (concrete scanning) Structural Radar (concrete scanning) Structural Radar (concrete scanning) Structural Radar (concrete scanning)
Typical concrete scan mark outs showing position and depth of reinforcing steel, in-situ services, post tension ducts and underlying beams prior to cutting or coring works.

Complimentary Services

Radiotech’s underground utility location services can be enhanced by incorporating other services such as:

  • Radar Concrete Scanning, a GPR investigation for ground slabs to provide construction detail and steel reinforcement layout for avoidance purposes. Other structures can also be investigated to provide a combined Utility and Structural investigation
  • GeoRadar ( or Ground Radar ) for underground location of non metallic services, arbitrary objects and possible obstructions such as large rocks or underground storage tanks, GeoRadar can also provide important stratigraphic information such as depth to bedrock. Ground Penetrating Radar imaging can radically enhance site GIS data
  • Ferrous metal detection for location of hidden pit covers and other ferrous metal objects such as buried oil drums and metal debris.
  • Schmidt Hammer equipment for in situ testing of concrete MPA.
  • Underground Utility Location for safe excavation around services and utilities, prevents costly damage and down time. Findings can be mapped using highly accurate GPS and can be incorporated with other surveys.