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- since 1996 -

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Technical Discussions
bassouli
bassouli
02:17 Aug-14-2009
radiography in concrete

Dear Sirs.
I need some help in radiography.
I'm need proceedure to detect rebar depth in concrete.
Can anyone help me somehow in this matter.

Thanks in advance

 
 Reply 
 
ezio
Other, Retired ex Laboratory Technical Manager
OMECO Research Centre, Italy, Joined Sep 2008, 278

ezio

Other, Retired ex Laboratory Technical Manager
OMECO Research Centre,
Italy,
Joined Sep 2008
278
11:18 Aug-14-2009
Re: radiography in concrete
In Reply to bassouli at 02:17 Aug-14-2009 (Opening).

Radiography is not convenient method to this scope. Better and cheaper are electromagnetic methods. Please contact www.boviar.com

 
 Reply 
 
John O'Brien
Consultant, -
Chevron ETC , USA, Joined Jan 2000, 280

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
280
14:21 Aug-14-2009
Re: radiography in concrete
In Reply to bassouli at 02:17 Aug-14-2009 (Opening).

You will need to shoot at right angles to get depth and resolution will depend upon thickness of section examined, and size of rebar relevent to any aggregate in the mix. For very thick sections you are going to need real penetrating power using Colbalt 60 or a LINAC. There are other methods you might want to investigate such as electromagnetics mentioned in another repsonse or a portable ground penetrating radar device.

 
 Reply 
 
Badr Assouli
Badr Assouli
04:58 Aug-15-2009
Re: radiography in concrete
In Reply to John O'Brien at 14:21 Aug-14-2009 .

thank you
You talk about parallax radiograph procedure (double exposure) ? we already use this procedure. Yes we use Radar technique to detect rebar and it depth but is not sensitive enough to detect the corrosion of reinforcement.

 
 Reply 
 

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