Both methods rely heavily on technical interpretation to locate and identify structures within the concrete. In addition, the radiation emitted by these devices carries some health concerns. It can also be time consuming, and the costs can be somewhat prohibitive, especially when working on a tight budget. How much does ground penetrating radar (GPR) cost? The use of GPR is often the first choice when scanning concrete, and for good reason.
It is an extremely effective method of determining what is inside concrete structures. Ground penetrating radar is non-destructive and emits no harmful radiation. It can be used to quickly scan large areas without prior setup. Only one side of a slab or structure needs to be accessed, and the radar can generally penetrate to depths of 18-24.The use of GPR is comparatively cheaper than other methods such as X-ray imaging.
Typical results include marking findings (object locations) directly on the structure using chalk, crayon or tape, verbal communication of findings while on site using 3D imaging as needed, and a report documenting each scan location. GPR concrete scanning can help detect pipes, conduit, rebar, post tension cables, utilities, live wires, etc. Concrete scanning is used to inspect concrete slabs or columns prior to drilling or coring in renovations and new construction projects. When faced with a construction project involving a concrete structure - there can be various impediments in the concrete that can restrict progress during the construction process, and at the same time, hinder the safety of your team.
We make use of ground penetrating radar to uncover obstructions such as rebar, post-tensioning cables due to concrete cutting and drilling, electrical conduits, reinforcing steel, plus embedded utilities - to ensure a safe construction site. We perform concrete scans in Miami, Fort Lauderdale, West Palm Beach, Tampa, Orlando, Jacksonville, Tallahassee, Gainesville, Naples and Fort Myers. When you need to know what's inside, or on the other side, of that concrete floor, wall or ceiling. ACS Underground Solutions concrete scans are completed using Ground Penetrating Radar (GPR) technology for fast and accurate inspections.
There is more than one way to scan concrete structures while working on a construction job, such as a renovation. Scanning concrete to locate underground utilities or mapping utilities embedded in concrete slabs can be a difficult job. It should be borne in mind that in a saturated concrete utility market, taking shortcuts can lead to property, personal or project damage and losses that go far beyond that. In such a case, an X-ray scan would be required to obtain more details about any objects that may be embedded in the concrete structure.
X-rays are generally considered to be more accurate than GPR scanning, as there is less scope for interpretation of the results. The two main options are the use of X-rays or ground penetrating radar (GPR) to 'see inside the concrete slab or structure'. Once the GPR equipment detects these metallic obstructions, areas that are safe for drilling can be marked on the concrete. GPR signals may be inhibited or bounced if the scanned slab has a significant water or moisture content.