Concrete imaging and rebar imaging allow for the non-destructive evaluation and detection of subsurface concrete structures and the detection of embedded steel bars commonly known as rebars. Rebars are routinely used in concrete and masonry work as steel reinforcements. As more and more contractors, builders and concrete sawing and drilling companies require concrete and rebar detection before work starts, so enters the technology of concrete imaging and rebar imaging.
The equipment for concrete imaging and rebar imaging is more compact compared to other subsurface radars seeking out various applications. The sizes of the scans are normally 2x2 or 4x4 in 3-D and the processing takes 30-minutes and that includes data collection. An important feature in concrete imaging and rebar imaging is that they require shorter wavelengths and lower frequencies which allow using scanners with smaller transmitters and antennas.
Concrete imaging and rebar imaging can be used in the design phase as well as the construction phase of a project. Utilizing concrete imaging and rebar imaging during the construction phase of a project will prevent needless damages, disruption of services and injuries to workers. Another important benefit in using concrete imaging and rebar imaging enables the engineer or contractor to receive accurate information which will prevent costly change orders.
Concrete imaging and rebar imaging is better interpreted by using a trained Ground Penetrating Radar technician as well as a construction professional. Working together, the technician and field contact can interpret more correctly. For instance, in concrete imaging most of the time you can spot a rebar pattern, which is quite regular in space at a reliable depth. Usually patterns such as the preceding denote a rebar. If you find a dissimilar pattern then it is assumed not to be a rebar. That assumption could mean the pattern is a void, which is an area of concrete that has eroded away or it could be a pattern of post-tension cables, embedded in concrete, or conduits - from electrically charged power lines, to network cables, phone or sewer lines.
Concrete imaging and rebar imaging is important to use before any type of subsurface and construction work commences.
For more information on the following topics, click below:
ground penetrating radar
surface penetrating radar
G.P.R. [ GPR ]