This video is a documentation of Giles’ Don Goebel performing CIR scanning services. The process of CIR scanning involves using the Conquest Radar System to ‘see’ as far as 24 inches into a concrete or masonry member to check for obstructions such as reinforcing or post-tension steel, electric or plumbing lines, or other similar objects which may create problems for a contractor coring or cutting through a slab, wall, or beam. The CIR process provides the client and contractor with reasonable confidence that such obstructions will not be hit by the core drill or concrete saw. It can also be used for verifying the presence and location of reinforcing or post-tension steel to assist a project structural engineer in evaluating the existing conditions of a building, for either the planned use or for a redesign.
The documented location where Don was performing CIR scanning in this video was within a hospital. The electrical contractor needed to core a hole through the concrete slab to run lines from one level to the next; Don can be seen marking on the floor where a beam or other obstruction was located. The Conquest screen displays both the depth of the scan and distance the scanning head travelled, thus providing him with the ability to mark areas where an obstruction appears. Obstructions detected appear on the screen as a parabola (a symbol recalled from high school geometry), the high point of the parabola being the probable mid-point of the obstruction.