Maintenance and Repair of Concrete Structures

By Prof. Radhakrishna G. Pillai   |   IIT Madras
Learners enrolled: 606
This course will help students learn how to identify various deterioration mechanisms or damage mechanisms in concrete structures (say, deterioration of metallic reinforcement and cementitious materials). The course will discuss both the scientific aspects and its use while practicing repair works at site. Use of various non-destructive, partially-destructive tools to assess the condition of the structure will be discussed. Also, tips on selecting measurable parameters that are useful in deciding the further repair and maintenance practices will be provided. Following this, practices for typical near-surface repair, corrosion protection, structural strengthening, structural stabilization, etc. will be discussed in detail. At the end of the course students will be able to suggest evaluation and repair/retrofitting methods for extending the service life of concrete structures. Importance for preventive maintenance practices (instead of corrective maintenance practices) will be discussed throughout the coursework.

INTENDED AUDIENCE : Graduate and undergraduate students, research scholars, practicing engineers, repair experts, and scientists, working in the areas of concrete science and technology
PREREQUISITES : Completed 3rd year of a Bachelor program in civil engineering
• Govt. agencies and public/private companies involved in the design, construction, and maintenance of concrete structures:
• Govt agencies: National Highway Authority (NHAI), Central Public Works Department (CPWD) and PWD/Housing departments of various states
• Chemical manufacturers: BASF, SIKA corporation, Euclid chemicals, and other chemical admixture companies
• Cement companies: ACC ltd., Ambuja cement, JSW cement Ltd, JK Cement Ltd, Penna Cement Industries Ltd, Ultratech cement Ltd, and other cement industries
• Steel companies: JSW steel, Tata Steel, Steel Authority of India Ltd., and other steel industries 
• Repair contractors: Vector Corrosion Technologies, HILTI, and other cathodic protection industries
• Owners/Builders/Structural Consultants: L&T Construction, Shapoorji Pallonji Construction Limited (SPCL), DLF Limited, Tata Housing, STUP Consultants, Engineers India Limited (EIL)
Course Status : Upcoming
Course Type : Elective
Duration : 12 weeks
Start Date : 24 Jan 2022
End Date : 15 Apr 2022
Exam Date : 23 Apr 2022 IST
Category :
  • Civil Engineering
  • Construction Materials Technology
Credit Points : 3
Level : Undergraduate/Postgraduate

Course layout

Week 1 : Introduction, significance of corrosion, and corrosion mechanisms
Week 2 : Embedded metal corrosion
Week 3 : Deterioration of cementitious systems – Sulphate and Acid attack
Week 4 : Deterioration of cementitious systems – Alkali Silica Reaction (ASR), Shrinkage,
and others
Week 5 : Concrete assessment using non-destructive tests (NDT)
Week 6 : Concrete assessment and load effects
Week 7 : Surface repair – Condition assessment
Week 8 : Surface repair – Analysis, strategy, and design
Week 9 : Surface repair – Material requirement, surface preparation, placement of repair
Week 10 : Strengthening and stabilization – Introduction and beam shear capacity
Week 11 : Strengthening and stabilization – Column strengthening
Week 12 : Strengthening and stabilization – Flexural strengthening

Books and references

Concrete Repair and Maintenance” by Peter H. Emmons, R.S. Means Company, Kingston, MA, USA
1. “Maintenance Repair & Rehabilitation & Minor Works of Buildings” P.C. Varghese, PHI Learning Pvt. Ltd., New Delhi
2. “Concrete Repair to EN1504 – Diagnosis, Design, Principles and Practice” Michael Raupach and Till Buttner, CRC Press., Taylor and Francis Group, Boca Raton, FL, USA
3. “Concrete Structures – Protection, Repair and Rehabilitation” R. Dodge Woodson, Butterworth-Heinemann – Elsevier, UK

Instructor bio

Prof. Radhakrishna G. Pillai

IIT Madras
Dr. Radhakrishna G. Pillai is an Associate professor at the Department of Civil Engineering at the Indian Institute of Technology Madras, Chennai, India, where he is working since 2010. He earned his M.S. and Ph.D. in Civil Engineering from Texas A&M University (TAMU), College Station, Texas, USA. He has co-authored more than 70 publications in the areas of structural and materials performance, concrete technology, and corrosion mechanisms and service life estimation in concrete structures. In addition, he is a lead investigator for various research projects funded by public and private agencies involving corrosion, condition assessment and restoration of concrete structures.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 23 April 2022 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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