NDT Methods for Concrete Structures

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NDT Methods for Concrete Structures
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Corrosion Analyzing Instruments
http//www.proceq-usa.com/products/canin.php
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Concrete Cover Meters (Rebar locators)
Ground penetrating radar
http//www.canin-corrosion.com/indexold.htm
http//www.ndtjames.com/catalog/rebarLocators/data
scanMKII.html
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Resistivity Meter
The resistivity meter is used for measuring the potential fields (as a complement to the corrosion analyzing instrument) to evaluate the corrosion rate of the reinforcing bars in the concrete. The electrical resistance of the concrete is measured according to the Wenner four-point method. The measured values (over 7,000 points) can be either stored in the form of a simple grid or shown on the display.  They can also be transferred to a PC for further analysis.
http//www.proceq-usa.com/products/resi.php
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Ultrasonic testing instruments
http//www.procequsa.com/products/tico.php
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Concrete Rebound Hammer

• Quick and easy determination of the compressive
  strength of hardened concrete.

http//www.qualitest-inc.com/concretehammer.htm
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Air and Water Permeability

• Air and water permeability of concrete using the
  Figg technique

http//www.ndtjames.com/catalog/corrosionTesting/p
oroscopePlus_surfaceTest.html
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Coring

• Cylinders (radius 15 cm, height 30 cm)
• Test density, compressive and tensile strength

http//www.precisionsampling.com/concrete_coring.h
tml
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Pull-off Test
In-Situ Adhesion Testing of Concrete Surface
Repairs
http//www.proceq-usa.com/products/pulloffdyna.php
http//www.qub.ac.uk/civeng/research/Intro/researc
h_areas/in_situ/repair.html