Rebar Scanner & Concrete GPR Scanning
Locate reinforcement structures, conduits, and post-tension cables inside concrete slabs, columns, and walls. Prevent utility strikes and preserve structural integrity during renovations and coring projects.
Map Rebar & Conduits with Concrete GPR
Protect your site workers and preserve structural integrity. Our technicians use high-frequency concrete radar (GPR) sensors to scan concrete floors, walls, and columns, locating embedded elements with high precision before any drilling, coring, or cutting begins.
Unlike electromagnetic locating which only detects current-carrying lines, high-frequency GPR waves bounce off metal rebars, post-tension strands, voids, and plastic conduits. This provides a complete 3D picture of what is inside the slab down to 600mm.
Locate Post-Tension (PT) Cables & Tension Tendons
Cutting a post-tension (PT) cable can cause immediate structural collapse or severe injury due to the high energy released. Our scanning methods isolate tension tendons, allowing structural engineers to sign off on core placements with absolute safety.
Prevent electrical shock: Pinpoint plastic and metallic conduits containing live power lines before cutting slabs.
Avoid structural damage: Prevent the severing of structural steel bars to maintain concrete slab integrity.
Coring sign-off: Provide structural engineers with depth charts and coordinates for core drilling clearance.
Technical Capabilities
Concrete Radar Imaging
High-frequency radar pulses identifying metallic and non-metallic components.
Dual-polarized Antenna
Detecting horizontal and vertical rebar structures in a single pass.
Concrete Cover Depth Check
Accurate calculations of concrete cover to check structural compliance.
Need 3D Spatial Modeling?
Capture high-density point clouds and Scan-to-BIM layouts with our Lidar Scanner services.
Explore Lidar →Concrete & Structural Guides
Concrete GPR & Coring Safety Resources
Non-Destructive Concrete Rebar & Post-Tension Cable Scanning Before Coring
Why high-frequency concrete GPR scanning is mandatory before drilling or cutting post-tensioned slabs and structural beams.
GPR & Concrete Rebar Scanning Cost per m² in South Africa
Transparent ZAR pricing for concrete rebar scanning (R 1.20–R 1.80/m²) and subsurface utility locating across South Africa.
Structural Health Monitoring of Bridges & Retaining Walls
Combining internal concrete GPR rebar cover audits with external 3D laser deformation monitoring on civil infrastructure.
Frequently Asked Questions
Get answers to common inquiries about concrete GPR scanning and rebar locating.
How deep can a concrete GPR scan penetrate?
Concrete GPR scanning typically penetrates up to 600mm depending on concrete cure age, moisture content, and reinforcement congestion. High-frequency dual-polarized radar antennas resolve both top and bottom rebar mats, post-tension tendons, and slab thickness in suspended and slab-on-grade structures.
Why is concrete GPR scanning necessary before coring?
Drilling or coring through post-tension (PT) cables or structural reinforcing steel can cause catastrophic structural failure, and hitting embedded electrical conduits can cause electrocution or costly power outages. Non-destructive GPR scanning maps safe clear zones before any core bit touches the slab.
Can you detect plastic (PVC) conduits inside concrete?
Yes. Unlike magnetic covermeters that only detect ferrous metals, Ground Penetrating Radar (GPR) detects both metallic and non-metallic targets—including PVC electrical conduits, HDPE plumbing pipes, fibre ducts, and air voids—by measuring dielectric contrast inside the concrete matrix.
What deliverables do you provide after a concrete scan?
We provide immediate on-site high-visibility surface marking directly on the concrete slab or wall for instant coring clearance, followed by a certified engineering PDF report containing B-scan radargrams, concrete cover depth tables, and 3D grid slices.
Avoid Structural Failure & Coring Accidents
Speak with a concrete radar specialist today. Protect your slab cutting works with millimetric concrete GPR scanning coordinates.