Dr. Radhakrishna G. Pillai

Dr. Radhakrishna G. Pillai
Associate Professor
Phone: +91-44-22574303
Email: pillai@iitm.ac.in

IITM Scholar profile page
Education
Professional Experience
  • Assistant Professor, Department of Civil Engineering, IIT Madras, Chennai, India, September 2010 – Present.
  • Post-doctoral Scholar, School of Civil and Construction Engineering, Oregon State University, Corvallis, Oregon, USA, October 2009 – August 2010
  • Post-doctoral Research Associate, Texas Transportation Institute, College Station, Texas, USA, June 2009 – October 2009
  • Research Associate, Texas Transportation Institute, College Station, Texas, USA, June 2003 – January 2004
  • Graduate Research/Teaching Assistant, Texas A&M University System, College Station, Texas, USA, December 2000 – June 2003 & January 2004 – January 2009
Research Interests
  • Development of corrosion test methods for steel-cementitious systems
  • Monitoring and prevention of corrosion in concrete structures
  • Bond performance of corroding prestressed (pre-tensioned) concrete systems
  • Service life estimation and time-variant structural reliability assessment
  • Repair and rehabilitation of concrete structures
  • Grouting of post-tensioned systems
Recent Publications

Peer-reviewed Journal Papers

  1. Firodiya, P., Sengupta, A., and Pillai, R.G., “Evaluation of corrosion rates of reinforcing bars for probabilistic assessment of existing road bridge girders,” ASCE Journal of Performance of Constructed Facilities, accepted for publication (2014)
  2. Pillai, R.G., Reinschmidt, K.F., Trejo, D., Gardoni, P., and Hueste, M.D., “Predicting residual tensile strength of 7-wire strands using that of single wires exposed to chloride environments,” ASCE Journal of Materials in Civil Engineering, accepted for publication (2013)
  3. Pillai, R.G., Trejo, D., Gardoni, P., Hueste, M.D., and Reinschmidt, K.F., “Time‑variant flexural reliability of post‑tensioned, segmental concrete bridges exposed to corrosive environments,” ASCE Journal of Structural Engineering, accepted for publication (2013)
  4. Pillai, R.G. and Annapareddy, A., “Service life models for chloride-laden concrete structures: A review and nomographs,” Int. Journal of 3Rs (Repair, Restoration, and Renewal of Built Environment), 4 (2): 563-580, April-June (2013)
  5. Pillai, R.G., Gardoni, P., Trejo, D., Hueste, M.D., and Reinschmidt, K.F., “Probabilistic models for the tensile strength of corroding strands in post-tensioned, segmental concrete bridges,” ASCE Journal of Materials in Civil Engineering, 22 (10), pp. 967-977, October 2010
  6. Pillai, R.G., Hueste, M.D., Gardoni, P., Trejo, D., and Reinschmidt, K.F., “Time‑variant service reliability of post-tensioned, segmental concrete bridges exposed to corrosive environments,” Journal of Engineering Structures, 32 (9): 2596-2605, September 2010
  7. Gardoni, P., Pillai, R.G., Hueste, M.D., Reinschmidt, K.F., and Trejo, D., “Probabilistic capacity models for post-tensioning strands calibrated using laboratory results,” ASCE Journal of Engineering Mechanics, 135 (9): 906-916, September 2009.
  8. Trejo, D., Pillai, R.G., Hueste, M.D., Reinschmidt, K.F., and Gardoni, P., “Parameters influencing corrosion and tension capacity of post-tensioned strands,” ACI Materials Journal, 106 (2): 144-153, March/April 2009.
  9. Pillai, R.G., and Trejo, D., “Surface condition effects on critical chloride threshold of steel reinforcements,” ACI Materials Journal, 102 (2): 103-109, March 2005.
  10. Trejo, D., and Pillai, R.G., “Accelerated chloride threshold testing: Part II – corrosion resistant reinforcement,” ACI Materials Journal, 101 (1): 57-64, January 2004.
  11. Trejo, D., and Pillai, R.G., “Accelerated chloride threshold testing: Part I – ASTM A615 and A706 reinforcement,” ACI Materials Journal, 100 (6): 519-527, November 2003.

International Conference Papers

  1. Sangoju, B., Gettu, R., Pillai R.G., Bharatkumar, B.H., and Iyer, N.R., “Influence of portland pozzolana cement on the service life of reinforced concrete under chloride attack,” 3rd International Conference on Sustainable Construction Materials & Technologies (SCMT3), Kyoto, Japan, August 18-21, 2013
  2. Venkataramu, V., Karuppanasamy, J., Kishore, A., and Pillai R.G., “Effects of corrosion inhibitors on the critical chloride threshold of thermo-mechanically treated (TMT) steel,” 3rd International Conference on Sustainable Construction Materials & Technologies (SCMT3), Kyoto, Japan, August 18-21, 2013
  3. Venkataramu, V., Karuppanasamy, J., and Pillai R.G., “Effects of calcium nitrite corrosion inhibitor on the chloride threshold of TMT steel,” UKIERI Concrete Congress – Innovations in concrete construction, March 5-8, 2013b, Jalandhar, India
  4. Firodiya, P.K., Pillai, R.G., Sengupta, A.K., Menon, D., Corrosion rates of plain mild steel and cold-twisted deformed steel reinforcement,” UKIERI Concrete Congress –Innovations in concrete construction, March 5-8, 2013, Jalandhar, India
  5. Annapareddy A., Agarwal, A., and Pillai R.G., “Service life prediction models for concrete structures – A comparative study,” In Gettu, R., Santhanam, M, Menon, A. and Pillai R.G. (eds.), Proceedings of an International Conference on Rehabilitation and Restoration of Structures, IIT Madras, Chennai, India, February 12-16, 2013
  6. Pillai, R.G., and Trejo, D., “Effects of test procedures on critical chloride threshold of steel,” 3rd International Conference on the Durability of Concrete Structures (ICDCS 2012) Belfast, UK, September 17-19, 2012
  7. Pillai, R.G., Trejo, D., Gardoni, P., Reinschmidt, K.F., and Hueste, M.B.D., “A reliability-based service-life design approach for     segmental concrete bridges subject to corrosive conditions,” 3rd International Conference on the Durability of Concrete Structures (ICDCS 2012) Belfast, UK, September 17-19, 2012
  8. Pillai, R.G., Gardoni, P., Hueste, M.D., Reinschmidt, K.F., and Trejo, D., “Flexural reliability of corroding segmental, post-tensioned bridges,” In Safety, Reliability and Risk of Structures, Infrastructure Engineering Systems – Furuta, Frangopol, and Shinozuka (eds.), Proceedings of the 10PthP International Conference on Structural Safety and Reliability (ICOSSAR10), Osaka, Japan, September 2009
  9. Pillai, R.G., Gardoni, P., Hueste, M.D., Reinschmidt, K.F., and Trejo, D., “Probabilistic capacity models for corroding strands in post-tensioned bridges with voided tendons,” In Kanda, J. Takada, T. & Furuta, H. (eds.), Proc. of the 10th International Conference on the Applications of Statistics and Probability in Civil Engineering (ICASP10), Tokyo, Japan, July 31‑August 3, 2007
  10. Ramakrishna, K., Agarwal, S., and Pillai R.G., “Enhanced Programming Techniques for the Analysis of Skeletal Structures,” Proceedings of the South-East Asian Conference of Architects and Civil Engineers, Nepal, April 1999

National Conference Papers

  1. Firodiya, P.K., Menon, D., Sengupta, A.K., and Pillai, R.G., “A Probabilistic Assessment of the Deterioration of Flexural Capacity of a Reinforced Concrete Bridge Deck due to Corrosion of Steel Bars,” Structural Engineering Congress (SEC-2012), S. V. National Institute of Technology, Surat, Gujarat, India, December 19-21, 2012
  2. Jegan, V., Mary Jacob, V., and Pillai, R.G., “Effects of corrosion inhibitor on the performance of mild steel and prestressing steel,” Proceedings of the National Conference on Recent Advances in Civil Engineering (RACE-2011), Institute of Technology – Banaras Hindu University, Varanasi, U.P., India, October 14-16, 2011
  3. Pillai, R.G., “Corrosion and service life prediction of reinforced concrete structures,” National Conference on Advances in Materials and Structures (AMAS 2011), Pondicherry Engineering College, Pondicherry, India, February 3-4, 2011
Research and Consultancy

1) Service Life Prediction, Corrosion Inhibition, and Corrosion Detection of of Prestressed Concrete Structures; Rs. 8,00,000/-; Funded by IIT Madras SEED Grant; 2011-2014

2) Setting up of a laboratory for the durability and study of the long-term performance of concrete; Investigators: Dr. Ravindra Gettu, Dr. Manu Santhanam, and Radhakrishna G. Pillai; Rs. 93,76,000/-; Funded by Lafarge Centre De Recherche, France; 2010 – 2015

3) Study of Durability of Concrete under different environmental conditions; Investigators: Dr. Ravindra Gettu, Dr. Manu Santhanam, and Radhakrishna G. Pillai; Rs.23,00,000/-; Funded by Lafarge Centre De Recherche, France; 2010 – 2015

4) Development of Performance Specifications for Durable Concrete Construction in India; Investigators: Dr. Manu Santhanam and Radhakrishna G. Pillai; Rs. 50,00,000/-; Funded by Department of Science & Technology (DST), Govt. of India; 2012 – 2015

5) Bi-Polar and Calcium Nitrite Corrosion Inhibitors for Steel-Cementitious Systems; Rs. 3,00,000/-; Funded by UltraPure Chemicals Pvt. Ltd., Karaikudi, TamilNadu; 2011 – 2012

6) Probabilistic Service Life Prediction of Prestressed Concrete Structures; Rs. 18,42,000/-; Funded by (under Fast-Track Scheme) Department of Science & Technology (DST), Govt. of India; 2012 – 2015

7) Performance evaluation of corrosion resistant cement; Rs. 5,00,000/-; Funded by Jayajothi Cements Pvt. Ltd., Rajapalayam, Tamil Nadu; 2012 – 2013

Student Guidance

1. Current Students

Doctor of Philosophy (Ph. D.)

  • Mr. Jayachandran Karuppanasamy: “Corrosion characteristics and residual tensile strength of thermo-mechanically treated (TMT) and prestressing steels in cement mortar with corrosion inhibitors and exposed to chlorides”; July 2010 onwards
  • Ms. Prabha Mohandoss: “Effect of corrosion on steel-concrete bond and service life of chloride-laden pretensioned concrete systems”; July 2013 onwards
  • Ms. Sripriya Raju: “Development of a reliable and accelerated test method for detecting the initiation of chloride-induced corrosion of steel-cementitious systems”; January 2014 onwards

Master of Science (M.S.)

  • Ms. Ranjitha Rajagopal: “Effect of corrosion on the mechanical properties of cold-twisted and prestressing steel reinforcement”; July 2013 onwards
  • Mr. Sheetal Surana: “Evaluation of the efficiency of curing methods by using various durability indices”; July 2013 onwards
  • Mr. Sooraj Kumar A.O.: “Effect of corrosion on the mechanical properties of 7-wire prestressing steel strands”; July 2014 onwards

Master of Technology (M.Tech.)

  • Mr. Arifulla P.S.: “Comparison of precast and cast in-situ concrete building construction in India”; Co-guidance with Prof. N. Raghavan; 2014-15
  • Ms. Suruthi Kamalakkannan: “Evaluation of existing test methods and modification of the existing flow-cone test method for the performance assessment of post tensioning grouts”; Co-guidance with Prof. Manu Santhanam; 2014-15
  • Ms. Ramya Thirunavukkarasu: “Evaluation of various existing grout materials for post-tensioning applications using existing test methods and prototype testing”; Co-guidance with Prof. Manu Santhanam; 2014-15

Integrated B.Tech./M.Tech. (Dual Degree)

  • Mr. Kumar Neelotpal Shukla: “Chloride threshold and corrosion rates of various steel-cementitious systems”; 2014-15

2. Past Students

Master of Technology (M.Tech.)

  • Ms. Vibha Venkataramu (M.Tech.): “Electrochemical characterization of thermo-mechanically treated (TMT) steel in mortar with corrosion inhibitors”; 2011-12
  • Ms. Swathi S. Kurumoji (M.Tech.): “Comparative study on the performance of in-situ and precast construction technologies for residential projects”; Co-guidance with Prof. N. Raghavan; 2012-13

Integrated B.Tech./M.Tech. (Dual Degree)

  • Mr. Prasanth Alapati: “Accelerated corrosion test method and evaluation of steel-cementitious systems with corrosion inhibitors and blended cements”; 2013-14
  • Mr. Nitish Kumar: “Development of guidelines to promote precast construction in India”; Co-guidance with Prof. N. Raghavan; 2013-14
Courses
  • CE 2330 – Civil Engineering Materials and Construction
  • CE 3420 – Concrete Technology
  • CE 5010 – Modern Construction Materials
  • CE 3410 – Construction Materials Lab (undergraduate  level)
  • CE 5090 – Construction Materials Lab (graduate level)
  • CE 5060 – Industrial Seminar
Continuing Education