Locate Rebar In Concrete

Written by Amy Hall
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Using Subsurface Radar to Locate Rebar In Concrete

To locate rebar in concrete in the most timely and accurate manner, it would be wise to use Ground Penetrating Radar (GPR). This advanced technology allows workers to "see" what is below the surface without ever having to drill, dig, or core the surface whatsoever. Not only does this save time, but it saves money as well.

During the designing and planning stage of any construction project, engineers often need to know what type of utilities are located beneath the surface. If they just drew up a building plan without knowing this, they would more than likely run into trouble. Construction crews would blindly begin excavation only to bump into rebar, conduit, or electrical wires accidently. This makes everything go beyond schedule and over budget, as the engineers then have to go back and redraft a new plan.

GPR Systems that Deliver Fast Results

Traditionally, and still to some degree, X-rays have been used to locate subsurface utilities. However, this can be costly as X-rays often require the person taking them to snap more than a few images from different angles to get the correct location of utilities. This means that the customer has to pay for each X-ray image taken, and the bill soon adds up.

Subsurface radar, however, can be used over a large area, and it delivers accurate data within minutes. When the antenna is scanned over the targeted area, radio pulses are given off when they locate rebar in concrete. This data can then be downloaded onto a laptop computer for even further detailed analysis.

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