Sunday, October 28, 2012

What Are The Distinctions Between Concrete X-ray and GPR?

Concrete X-ray is in reality a misleading expression since many workmen use it to mean ground penetrating radar. Adding to the confusion is that, although concrete radiography is progressively being superseded with GPR, older technology is consistently utilised. Cement radiography involves taking x-ray images of the layers of concrete to find out where post-tension cables, rebar as well as conduits are placed within it. The X-ray machine can go through approximately thirty inches inside of the slab and sometimes even deeper depending on its composition, and take really thorough images which are simpler to read compared with GPR records.


Are there any other differences between concrete x-ray and GPR?

1. Cement radiography has to be processed off-site. The results of the scan are put onto x-ray film, that still has to get developed before the outcome can be viewed. With GPR, the end results instantly appear on the unit's digital screen. However, a lot of radiography providers have mobile darkrooms that enable the film to be|developed on location, giving you the outcomes in minutes.

2. Cement radiography uses each side of the slab for scanning, with one end containing the film and the other the reflector plate. Therefore, there are limitations with the thickness of the slab being scanned. If you have iridium-based radiography machines, you are able to scan a slab as much as twelve inches, whereas by having cobalt-based radiography it is easy to read slab with a maximum thickness of 36 inches.

3. Concrete radiography demands the operator to wear safety gear such as a lead apron to keep them protected, and having an eighty ft space around the slab to make sure that viewers will not be come in contact with the radiation out of the x-ray unit.

4. Concrete radiography is actually more expensive than GPR because of the higher cost of the equipment involved as well as the wages of the x-ray specialist handling it. Alternatively, the GPR operator could be taught to manage the machine just in 1 day, although you would still require an experienced technician in order to interpret the information.

5. Concrete radiography can't get data on large building sites. If you would like gather info from larger slabs, you simply must continually set up the concrete x-ray device at several areas where you want to gather data. By contrast, GPR is a tool which can take measurements of large areas merely by being set up once.


2 comments:

  1. I never knew that concrete x rays or GPRs even existed. They are kind of like metal detectors, but instead of just being used as a toy or to find things, these are used for practical purposes. I think it would be very cool to operate a concrete x ray or GPR.
    http://www.concretescanningservices.com.au/structural-investigations/5974

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  2. I have always tried to understand the difference between concrete x-rays and GPR. Everyone who tried to explain it to me didn't do a very good job. I learned a lot from this article, though! I understand it a lot better. My grandpa used to use concrete x-rays often. http://www.concretescanningservices.com.au/structural-investigations/5974

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