Before you cut, core, or drill into concrete, you need to know what’s inside it. C&M Subsurface provides rebar scanning services across Texas using ground penetrating radar (GPR) to locate rebar, post-tension cables, conduits, and other embedded features within concrete slabs and structures. Our non-destructive scanning gives contractors, engineers, and project managers the accurate, real-time data they need to work safely and avoid costly structural damage.
Accurate Rebar Detection Using GPR Technology
GPR rebar scanning is one of the most reliable non-invasive methods available for identifying what’s embedded inside concrete. Our equipment emits radar signals into the concrete surface and measures the reflections to produce a clear picture of what’s below. The result is accurate depth, spacing, and layout information that your team can act on immediately, without cutting a single hole.
C&M Subsurface uses advanced GPR concrete scanning equipment operated by experienced field technicians. We provide on-site markings, digital reports, or both, depending on what your project requires.
When You Need Rebar Scanning Services
Rebar scanning is recommended any time work involves cutting into, drilling through, or modifying concrete. Common applications include:
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Before Cutting or Core Drilling:
Striking rebar or a post-tension cable during a core drill is one of the most avoidable mistakes on a job site. Scanning before you drill identifies exactly where reinforcement is located so your team can choose a safe path and proceed with confidence..
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For Anchor Installation:
Anchor bolts and embedments require precise placement. Rebar scanning confirms clear locations before installation begins, reducing the risk of hitting reinforcement and compromising both the anchor and the surrounding concrete.
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During Renovation or Structural Modifications:
Renovation work on existing concrete structures often involves unknowns. Scanning before any cutting or demolition gives your team a clear picture of the reinforcement layout and helps prevent structural damage during the process.
For Electrical or Plumbing Installation:
Running conduit, pipe, or other utilities through concrete requires knowing what’s already there. Rebar scanning identifies existing conduits and reinforcement to help crews plan penetrations without unexpected conflicts.
What Our Rebar Scanning Services Detect
C&M Subsurface GPR scanning identifies a range of embedded features within concrete, including:
- Rebar Location and Depth We locate individual rebar within the slab and provide accurate depth readings so your team knows exactly how far below the surface each bar sits.
- Rebar Spacing and Layout Our scans map out rebar spacing and grid patterns across the scan area, giving you a clear view of the full reinforcement layout before any work begins.
- Reinforcement Patterns Beyond individual bars, we identify how reinforcement is arranged throughout the concrete, including layered rebar, crossing patterns, and areas of dense reinforcement that may affect drill placement.
- Post-Tension Cables Post-tension cables are under significant tension and striking one during cutting or drilling can cause serious structural damage and safety hazards. Our GPR identifies PT cable locations and depth before any penetration is made.
- Conduits and Utilities Electrical and communication conduits are often embedded within or below concrete slabs. We locate these features alongside reinforcement to give your team a complete picture of what’s inside the slab.
How Rebar Scanning Works
Ground Penetrating Radar (GPR):
GPR concrete scanning works by sending radar signals into the concrete and recording how those signals reflect off embedded objects. Different materials reflect differently, allowing our equipment to distinguish rebar, cables, conduit, and voids. The data is processed in real time on site, meaning your team does not have to wait for lab results or off-site analysis.Real-Time Data and On-Site Marking:
One of the key advantages of GPR rebar scanning is the speed of results. As our technicians scan, findings are immediately visible on screen. We mark the concrete surface directly with the location of rebar, cables, and conduits, so your team can begin work the same day.Reporting and Documentation:
When a written record is needed, we provide detailed scan reports that document findings, depth information, and imagery from the scan. Reports are tailored to your project requirements, whether you need a simple summary or a comprehensive documented deliverable.
Rebar Scanning vs. X-Ray
X-ray has historically been used for concrete scanning, but GPR has replaced it as the standard for most applications. X-ray requires radiation safety protocols, site shutdowns, and specialized coordination. GPR requires none of that. Our equipment is non-radioactive, works in real time, and can be used on active job sites without clearing the area or waiting on safety clearances. For most rebar scanning applications in Texas, GPR delivers the accuracy you need with far less disruption to your project.
Our Rebar Scanning Process
At C&M Subsurface, our process is designed to be straightforward from first contact to final deliverable.
- Request a Quote: Share your project details and we will provide a clear proposal covering scope, timeline, and pricing.
- Schedule Service Once approved, we coordinate site access and schedule the scan around your project timeline.
- Site Preparation: Our technicians review the area, confirm scan locations, and prepare for efficient fieldwork.
- GPR Rebar Scanning: We scan the concrete using advanced GPR equipment to locate rebar, post-tension cables, conduits, and other embedded features.
- Data Verification: Findings are reviewed and cross-checked on site to confirm accuracy before marking or reporting.
- Marking and Reporting: We provide on-site surface markings, a written report, or both, based on your project needs.
Why Choose C&M Subsurface for Rebar Scanning?
C&M Subsurface is a Texas-based, Aggie-owned company built on accuracy, reliability, and fast response. We combine advanced GPR technology with experienced field technicians who understand how to read data and communicate findings clearly. Every project gets the same attention to detail, whether it is a single core drill location or a full slab assessment across a large structure.
We tailor our deliverables to what you actually need. Some clients need surface markings only. Others need a full documented report. We work with you to determine what makes sense for your project and your budget.
Benefits of Rebar Scanning
- Identifies rebar, post-tension cables, and conduits before cutting or drilling
- Prevents costly structural damage and project delays
- Keeps job site workers safe by eliminating guesswork
- Reduces liability when modifying existing concrete structures
- Provides accurate depth and location data for confident decision-making
- Non-destructive with no radiation, no site shutdowns, and real-time results
Related Services
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