Modern Techniques For Corrosion Testing And Monitoring In Concrete Structures
(1 day w/o lab; 2 days with lab)

Course Description 
Course Contents 
Who Should Attend 
Course Lecturer

Created in July 1995 last updated November 2003
 
 
 
 

COURSE DESCRIPTION

This one-day course thoroughly and systematically covers the principles and applications of a wide range of the latest techniques for corrosion testing and monitoring in concrete structures. These modern techniques can provide rapid and sensitive measurements/detection of corrosion. A one-day practical will enable the participants to gain hands on experience in using the state-of-the-art equipment for corrosion testing and monitoring in concrete structures. Class size will be limited to 12 participants. More participants can be accommodated upon request.

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COURSE CONTENTS

 

1. The Need for Corrosion Testing and Monitoring in Concrete Structures

1.1 Assessment of the Extent of Corrosion Damage
1.2 Determing the Rate of Corrosion Damage
1.3 Early Warning -Monitoring the Rate of Corrosion Damage
1.4 Evaluating the Effectiveness of Repair/Rehabilitation

2. The Nature of Corrosion Process in Concrete Structures

2.1 Concrete Corrosion: What it is
2.2 Physical Changes  Due to Corrosion
2.3 Chemical Changes Due to Corrosion
2.4 Corrosion Rate and Current Density

3. Indirect Methods for Corrosion Testing and Monitoring

3.1 Depth of carbonation
3.2 Depth of chloride penetration
3.3 Electrical resistance (ER probe)
3.4 Concrete resistivity
3.5 Half-cell potential mapping (ASTM standard C876)
3.6 pH, Temperature
3.7 Moisture

4. Direct Methods for Corrosion Testing and Monitoring

4.1 Linear polarisation resistance measurement
4.2 Potentiodynamic polarization
4.3 AC Impedance measurement
4.4 Electrochemical noise measurement

5. Design of Corrosion Sensors in Concrete Structures

5.1 Overview of sensor designs
5.2 Interfaces with sensors
5.3 Advantages and limitations
5.4 Cost considerations

6. Practical Sessions

Actual concrete cubes will used for the following measurements:

a. Half-cell potential mapping
b. PH
c. Linear polarization resistance measurement
d. Potentiodynamic polarization
e. AC Impedance measurement

 
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WHO SHOULD ATTEND

This course has been structured in such a way that it is particularly suited for the architects, designers, technologists, engineers, technical service and maintenance personnel who deal with design, repair and rehabilitation of concrete structures.

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