How does concrete scanning work?

The concrete is scanned with ground penetrating radar. A device is passed over the exposed surface of the concrete, sending a signal into the concrete. The signal is deflected back to the device in different patterns, depending on the type of material in the concrete and the depth of the concrete. Concrete scanning is used to inspect concrete slabs or columns prior to drilling or boring in renovation and new construction projects.

Slabtec's concrete scanning are completed using Ground Penetrating Radar (GPR) technology for fast and accurate inspections. GPR is safe and non-invasive; using transmitted waves and their reflected signals, we can analyse the subsurface for embedded objects. Once the GPR unit is activated, it will start sending radar beams towards its target. It doesn't take long to complete its scan, and it won't damage or destroy anything it cares to disturb.

Whatever the project you are tasked with - building a new shop, a residential neighbourhood or demolishing an old building - the concrete scanning process is invaluable in ensuring the safety of your workers. GPR and X-ray scanning devices are two of the best options among the technologies for non-invasive scanning of concrete structures. Let's take a look at what both methods offer so you can better understand which one will work best for your next construction project. Concrete scanning with ground penetrating radar makes working with concrete as simple as a quick scan.

If you are working with concrete, you will likely have to cut or core it at some point as deterioration occurs over time. This project can be inherently dangerous, time-consuming and costly if there are things embedded in the concrete. But how can you tell if there is anything in there if you can't see through it? Scanning concrete with ground penetrating radar makes working with concrete as simple as a quick scan. The analyst can use different types of equipment depending on the job itself.

Our analysts carry the GSSI Mini XT. This equipment is ideal for locating rebar, ducts, post tension cables, voids and for determining in real time the thickness of the concrete slab. They also use the GSSI 2000 MHz palm antenna. This equipment works in small spaces, approximately 2 from the wall.

In addition to the GPR equipment used, all analysts are equipped with an RD 7100 unit. This unit is ideal for locating live ducts inside walls, slabs or ceilings. If scanning services have not been contracted before, it can be assumed that concrete scanning is simply an additional cost to a project. This could include a concrete-specific ground penetrating radar (GPR), a coverage meter, a ferroscan instrument or, perhaps, ultrasonic scanning equipment.

ACS Underground Solutions provides services in CT, NY, NJ, MA and RI to find hidden objects or anomalies prior to concrete core drilling or saw cutting. Scanning services can also be used to locate voids, or air pockets, between subgrade dirt and the concrete slab. We offer a selection of concrete scanning systems, so you can choose the one that best suits the needs of your project. When a cut is made in concrete without scanning it first, there is the possibility of encountering an underground object or hazard.

GPR is an accepted and routinely used non-destructive method for imaging objects in concrete prior to cutting or coring. Before you start your next major construction project, you need to be sure that the concrete on your site is safe. Concrete scanning is a method that detects subsurface hazards through the use of GPR (ground penetrating radar). Once scanning is complete, you will have a better idea of how to guide the development of the project you are responsible for, so when concrete scanning is an integral part of your process, you will be able to work faster and more efficiently.

Because GPR uses reflected radio waves, this method of imaging concrete is safe, non-invasive and more effective and versatile than X-rays for concrete assessment of columns, slabs and walls. Core drilling - Concrete sawing - Ground penetrating radar - Fire protection - Thermal and moisture protection.

Chloe Robinson
Chloe Robinson

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