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EKOSCAN
EKOSCAN is a French manufacturer specialized in equipment for ultrasonic Non-Destructive Testing.EKOSCAN is always breaking new ground in order ...
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Technical Discussions
Gabriel
Consultant,
Canada, Joined Oct 2009, 2

Gabriel

Consultant,
Canada,
Joined Oct 2009
2
18:32 Oct-08-2009
Concrete NDT and destructive testing

What would be the most common testing (both NDT and destructive testing)methods for pre-cast concrete products. Some methods I can see are the slump test, compression test and hardness tests. What other testing methods are common for this application? Thanks in advance

 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
20:09 Oct-08-2009
Re: Concrete NDT and destructive testing
In Reply to Gabriel at 18:32 Oct-08-2009 (Opening).

Gabriel,

I know of the PUNDIT machine for testing concrete. I googled PUNDIT and this led to the present equipment manufacturer, Proceq - they also make the Equotip hardness tester. So go to www.proceq.com for a wide variety of concrete testing electronic equipment.

Cheers

Nigel

 
 Reply 
 
Gabriel
Consultant,
Canada, Joined Oct 2009, 2

Gabriel

Consultant,
Canada,
Joined Oct 2009
2
02:03 Oct-09-2009
Re: Concrete NDT and destructive testing
In Reply to Nigel Armstrong at 20:09 Oct-08-2009 .

Thank you for the information. I had a look at them and it is very useful. Can you think of any other NDT for quality control?

 
 Reply 
 
Ernst Niederleithinger
R & D, -
BAM (Fed. inst. for material research and testing, Germany, Joined Jun 2001, 7

Ernst Niederleithinger

R & D, -
BAM (Fed. inst. for material research and testing,
Germany,
Joined Jun 2001
7
08:18 Oct-09-2009
Re: Concrete NDT and destructive testing
In Reply to Gabriel at 02:03 Oct-09-2009 .

Gabriel,

there are a lot of additional methods (and manufacturers) around. There are eddy current and radar devices e. g. for checking rebar location or acoustic methods (impact echo, ultrasonics) for checking geometry , quality, inhomogeneities.... You can even X-ray.
What is best for you, depends on your application. If you decribe the "precast concrete products" and the problems you expect a little more in detail, I (and others) could recommend suitable methods.

Regards, Ernst

 
 Reply 
 
Martin Schickert
R & D,
Institute for Materials Research and Testing, Germany, Joined Jan 2000, 18

Martin Schickert

R & D,
Institute for Materials Research and Testing,
Germany,
Joined Jan 2000
18
09:28 Oct-09-2009
Re: Concrete NDT and destructive testing
In Reply to Gabriel at 18:32 Oct-08-2009 (Opening).

Gabriel,

the usage of destructive testing methods on pre-cast concrete products depends
1. on the standards applicable to the product in the respective country and
2. on the techniques the manufacturer has found useful for quality control. There is a wide range of possibilies.

Concerning non-destructive methods, I am not aware of any standards. Ultrasonic through transmission has been used for quality control for a long time. Changes of the pulse velocity indicate variations in the manufacturing process, cracks, or other problems.

During the last few years non-destructive testing methods have been developed further. As an example, our institute conducts R&D on ultrasonic methods. It is now possible to measure pulse velocity without surface contact employing air-coupled transducers, or to image concrete elements from one side using electronic and mechanical scanning and 2D or 3D SAFT reconstruction.

Martin Schickert

 
 Reply 
 
Simon Amallraja
Simon Amallraja
14:41 Oct-12-2009
Re: Concrete NDT and destructive testing
In Reply to Gabriel at 18:32 Oct-08-2009 (Opening).

Check the following website: www.ultrangroup.com. They have devloped Non Contact Ultrasonic Systems for Concrete structures like Bridges, Buildings etc.,

Simon

 
 Reply 
 

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