Concrete scanners are used to locate reinforcing and services before cutting and drilling. Concrete GPR is the most commonly used and appropriate technology.
Concrete scanning typically refers to locating the embedded reinforcing steel, post tensioning and services inside concrete. Perhaps extending to a more detailed investigation of the concrete element's design, size, shape and other structural information.
The majority of concrete scanning work is Mark and Locate work, where a concrete scanning technician wants to draw the reinforcing layout on the surface of the concrete, when a concrete cutter drills or cuts through the material, they use this information to avoid striking hazards, or damaging reinforcing and services.
The GP8000 is a portable concrete GPR radar. Faster, easier concrete inspections and structural imaging with SFCW ground penetrating radar technology.
Proceq's GP8100 is a highly productive portable concrete GPR array, built for fast scanning of large areas and to quickly locate objects in concrete structures.
The Proceq GP8800 is a ultracompact, wireless, ground penetrating radar (GPR) system for concrete. It is used as a concrete scanner to locate rebar, post tensioning, embedded conduits and other embedded objects, with the ability to fit into tighter places than other GPR.
Screening Eagle´s GPR data analytics and visualization software delivers superior quality of data post-processing thanks to the long-established GPR Slice algorithms and intuitive web-based software.
The most commonly used technology for concrete scanning is Ground Penetrating Radar, which uses the reflection of microwave energy from embedded objects in the structure to produce a radargram image that an operator interprets.
Other forms of non-destructive testing equipment may also be used, such as ultrasonic tools to locate defects or damage, but the term concrete scanning normally refers to the use of GPR tools to locate embedments.
Concrete Ground Penetrating Radar devices vary in size, purpose and capability. Single antenna devices are used for mark and locate, or to collect small scale data set for analysis. Small Arrays like Proceq's GP8100 produce larger data sets for 3D imaging, but are still useable for simple location tasks.
A larger array such as the GS9000 Subsurface Mapping GPR with a GX1 Array is instead used to collect large data sets for visualisation, mapping or deterioration analysis. Software such as GPR Insights is used for this post processing.
Concrete scanning is a combination of situational awareness, interpretation of concrete ground penetrating radar data and an understanding of the typical design of a structures reinforcing.
For mark and locate work an operator should begin with locating the key structural details such as reinforcing layout and spacing, the location and path of post tensioning tendons and the overall thickness of the concrete scanned.
With this understanding areas that will be cut or drilled into may now be marked with the planned penetration and the operator will sketch in detail the reinforcing layout and hazards onto the surface of the screen.
Depending upon client needs 3D views, a report of the scan and the operator's findings, CAD drawings, or more detailed investigation notes may also be collected.
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