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Corrosion Special Topical Papers

Emerging Corrosion Control Technologies for Repair
 and Rehabilitation of Concrete Structures
*

Dr. Jianhai Qiu
School of Materials Engineering
Nanyang Technological University
Nanyang Avenue, Singapore 639797

7. Ranking Of The Emerging Technologies For Corrosion Control In Concrete Structures

Based on the effectiveness in reducing or stopping the corrosion of steel reinforcement, the following ranking is suggested:
 
 

1

Impressed Current Cathodic Protection (ICCP)

For repair /rehabilitation
For new structures

2

Stainless steel / duplex stainless steel

For repair /rehabilitation
For new structures

3

Sacrificial Anode (SA) system

For repair/rehabiliation

4

Electrochemical Treatment
ER/ECR (or CE)

For repair/rehabilitation

5

Conventional patch repair

Base for comparison

8. Conclusions

The emerging technologies are increasingly used for the repair and rehabilitation of reinforced concrete structures due to their effectiveness and ease of installations. For long-lasting cost effective structures and facilities, these emerging technologies are already used for corrosion prevention in new concrete structures exposed to more corrosive environments.

If you want to know more about this topic presented here, there is a short course entitled "Emerging Corrosion Control Technologies for the Repair and Rehabilitation of Concrete Structures". It can be taken as in-house training course, online course or distance learning course.

9. Acknowledgement

The author wishes to thank the following organizations and companies for the permission to use copyrighted photographs, drawings and illustrations in this paper: The Nickel Development Institute, 3M Company (S) Pte Ltd, Fosroc International.
 

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