Conquest Concrete Imaging GPR



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Conquest is an integrated ground penetrating radar (GPR) data acquisition platform specifically designed to meet the needs of the concrete inspection industry. This system provides quick, easy surveying with integrated analysis in both high and low resolution 3-D image suites. Our Conquest Enhanced system allows our data analysts extended capability of data transfer to a PC and Windows-based software for further enhancement and image export for reports.

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The Conquest GPR system is designed to quickly evaluate concrete through non-destructive testing (NDT) methodology while delivering a fast, real-time imaging option for people who need to evaluate, drill, or cut structures on the spot. It can locate rebar, voids, PVC and metallic conduits, locate and estimate the depth of post-tension cables, reinforcing mesh, and transfer that data to a PC for further enhancement.

Conquest is now available with the ability to identify current carrying cables in concrete by detecting the magnetic fields carried by those cables. A power cable detector (PCD) head can be attached to the Conquest system to clearly identify hidden electrical cables, and main power lines within concrete.

TeaCo technicians can investigate foundation walls, columns, monuments and slab on grade while providing real time locations in all 3 dimensions (x, y, and z). Conquest GPR can determine the depth of cover in real time to a maximum depth of 24” below grade. Typical areas scanned are 24”*24”.

Many potential clients in this and surrounding areas have expressed their concerns and skepticism in regard to GPR technologies used in this application. Much of this consternation addresses the fact that these potential clients have used this technology in the past and still drilled, or cored into various components within the concrete itself. This is due to improperly trained technicians implementing grid surveys on line spacings that are matched to the wrong frequency, and then trying to interpolate between areas of inadequate signal coverage. In effect, they are playing “connect the dots” between scanned areas. This in turn creates avenues for interpretational errors. In the field a simple line scan may work some of the time to locate rebar, however conduits and post tension cables can easily be missed. Improperly trained technicians are not only a major safety concern for superintendents, but also a black eye on the face of GPR technology.

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TeaCo technicians are trained by Sensors & Software’s staff professionals in current trends, and software applications in order to provide the best possible deliverables for our developing clientele. Our technicians take the time on site to ensure survey areas are properly set up, allowing us to create high resolution 3-D grids. TeaCo technicians’ training reiterates the points of proper survey designs and geometries in order to provide our stakeholders accuracy and precision in interpretation. Although it takes a little longer to accurately collect the data using a 3D grid survey, risks of damaging conduits and post-tension cables, and even possible physical harm to the person doing the coring or cutting are averted while providing good margins with respect to safety and job costs. The result of this extra effort and attention to detail is that our analysts can subsequently create a permanent 3-D depth map of surveyed areas that is fully scalable with locations and depth of targets identified. TeaCo’s staff of professionals will not risk the safety of the workers, and strives to prove to our clients that GPR is the safest, most cost effective way to accurately characterize concrete and provides results in a timely manner.

Comparisons made between conventional x-ray technologies verses this new GPR technology readily illustrates the value for project managers to consider. Conquest Concrete Imaging creates absolutely no associated health hazard, can be executed in real time, requires no security personnel to prevent access during imaging, and only needs access to one side in order to image. X-Rays simply can’t offer this to project managers.

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