Concrete scanning: What to expect from GPR Solutions

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Concrete scanning, or concrete imaging, uses ground penetrating radar (GPR) to detect embedded utilities and structural elements embedded in concrete before cutting, coring, or drilling a structure. It is a nondestructive method of assessing concrete structures. Because GPR uses reflected radio waves, this concrete imaging method is safe, non-invasive, and effective for concrete assessment of columns, slabs, and walls.

How does GPR Solutions concrete scanning service work?

Concrete scanning identifies and locates objects within the concrete, which is vital for job site safety. Concrete scanning prevents injuries, damage, and additional costs during construction. Concrete scanning technicians can use ground penetrating radar scans to know the concrete depth, objects within the concrete, and any air pockets that cannot be seen from the surface.

During construction, a concrete scan is vital to:

- Maintain the structural integrity of the concrete

- Avoid costly repairs during the project

- Reducing personal injury risk

- Reduce the risk of damage to utilities, rebar, post-tension cables, pipes, and conduits


It is recommended to plan for concrete scanning if existing concrete has structural or utility elements, such as concrete floors. Imagine you need to cut, core, or saw concrete. Concrete scanning is recommended in these circumstances to mitigate potential damages, such as the accidental strike of unknown or unmarked rebar, conduits, or utilities during construction, remodeling, renovation, or concrete demolition activities. Concrete sawing, cutting, and drilling is such a forceful process that if anything is struck during the process, it’s often too late. Obstructions cannot be felt or navigated during the process and have to be marked prior to sawing, cutting, or drilling, due to the power of the tools being used.

Call Before Your Drill!

When it comes to concrete scanning, you want to make sure you're getting the most accurate estimate possible. That's why GPR Solutions takes the time to visit the job site and gather all the necessary documents. This process can be time-consuming, but it's crucial to get the job done correctly - and on-time! Before starting your concrete scan, be sure to call us so that we can get a quote. We'll do our best to finish your job on-time and within budget.

CAN GROUND PENETRATING RADAR SCAN CONCRETE SLAB-ON-GRADE?

Yes, scanning on grade is ideal use for Ground Penetrating Radar. The scan can be conducted at any time during the day or night, rain or shine- even in difficult-to-access areas. Once the scan is complete, you'll receive a report detailing all findings and recommendations.

CAN GROUND PENETRATING RADAR IDENTIFY THE DIFFERENCE BETWEEN REBAR, POST TENSION CABLES, ELECTRICAL CONDUITS AND OTHER EMBEDDED MATERIALS?

Not necessarily, the GPR can scan the concrete and generate an image on screen but that alone is not able to tell the difference between objects. That job is for our experienced technicians who can use the scans and 3D imaging generated by our software onsite to determine what each object is. Our equipment is also capable of Power Cable Detection (PCD) which will help in identifying conduit more accurately.

HOW ACCURATE IS GROUND PENETRATING RADAR WITH MARKING ANOMALIES IN CONCRETE?

If you're planning on scanning your concrete for any reason - be it for construction or maintenance- know that GPR Solutions has the most accurate ground penetrating radar technology in the business. We can detect accurately up to about +/-1/4" horizontally and to a depth of about 2 feet at +/-10-15%. Again always keep in mind factors which could impede the scan.

HOW LONG DOES IT TAKE TO SCAN AN AREA FOR CORE DRILLING?

Ground penetrating radar can be used accurately and effectively to scan small areas for coring all the way to entire warehouses for slab reading. Every job is going to take a different approach depending on the clients needs and the job site. For a single coring scan it typically take about 10 minutes for a technician to scan a 2x2 foot grid and generate the proper markings.

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