Current Science

Open Access Open Access  Restricted Access Subscription Access

Calibration of Accelerated Corrosion Protocol for Reinforced Concrete Columns


Affiliations
1 Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, India
 

Researchers globally have adopted different techniques for simulating the effects of corrosion on reinforced concrete (RC) sections in different experimental studies. Application of Faraday’s law remains the most commonly used technique for designing and controlling accelerated corrosion regimes for testing RC sections. In this study, we analyse the competence of Faraday’s law-based methodology to simulate corrosion of RC structures in laboratory conditions. Twelve small-scale (300 × 300 × 500 mm) RC columns were subjected to Faraday’s law-based accelerated corrosion regime. Variables of the study were the degree of corrosion and grade of concrete. Damage in the RC section due to corrosion was evaluated in terms of surface distress, corrosion cracking, surface strain and gravimetric examination. Monitoring of the corrosion process through potentiometric measurements and comparing the results with the obtained gravimetric results yielded calibration factors for Faraday’s law-based procedure. The proposed calibration factors were then validated by designing and testing accelerated corrosion for large-scale RC columns.

Keywords

Accelerated Corrosion, Calibration, Faraday’s Law, RC Members.
User
Notifications
Font Size

  • Cabrera, J. G., Deterioration of concrete due to reinforcement steel corrosion. Cem. Concr. Compos., 1996, 18(1), 47–59; doi: 10.1016/0958-9465(95)00043-7.

  • Mondal, G. and Rai, D. C., Performance of harbour structures in Andaman Islands during 2004 Sumatra earthquake. Eng. Struct. 2008, 30(1), 174–182; doi:10.1016/j.engstruct.2007.03.015.

  • Katwan, M. J., Corrosion of steel reinforcement in hot countries, an acute case study. Mater. Struct., 2001, 34, 360–366; doi:10.1007/BF02486487.

  • Wang, X. G., Zhang, W. P., Gu, X. L. and Dai, H. C., Determination of residual cross-sectional areas of corroded bars in reinforced concrete structures using easy-to-measure variables. Constr. Build. Mater., 2013, 38, 846–853; doi:10.1016/j.conbuildmat.2012.09.060.

  • Tapan, M. and Aboutaha, R. S., Effect of steel corrosion and loss of concrete cover on strength of deteriorated RC columns. Constr. Build. Mater., 2011, 25(5), 2596–2603; doi:10.1016/j.conbuildmat.2010.12.003.

  • Suda, K., Misra, S. and Motohashi, K., Corrosion products of reinforcing bars embedded in concrete. Corros. Sci., 1993, 35(5–8), 1543–1549; doi:10.1016/0010-938X(93)90382-Q.

  • Careas, S., Nguyen, Q. T., L’Hostis, V. and Berthaud, Y., Mechanical properties of the rust layer induced by impressed current method in reinforced mortar. Cem. Concr. Res., 2008; doi:10.1016/j.cemconres.2008.03.016.

  • Alonso, C., Andrade, C., Rodriguez, J. and Diez, J. M., Factors controlling cracking of concrete affected by reinforcement corrosion. Mater. Struct. Constr., 1998, 31(7), 435–441; doi:10.1007/BF02480466.

  • Cady, P. D. and Weyers, R. E., Chloride penetration and the deterioration of concrete bridge decks. Proc. Am. Soc. Test Mater., 1983, 2, 81–87.

  • Rodriguez, J., Ortega, L. and Casal, J., Load carrying capacity of concrete structures with corroded reinforcement. Constr. Build. Mater., 1997, 11(4), 239–248; doi:10.1016/S0950-0618(97)00043-3.

  • Capozucca, R., Damage to reinforced concrete due to reinforcement corrosion. Constr. Build. Mater., 1995, 9(5), 295–303.

  • Val, D. V., Deterioration of strength of RC beams due to corrosion and its influence on beam reliability. J. Struct. Eng., 2007, 133(9), 1297–1306; doi:10.1061/(ASCE)0733-9445(2007)133:9(1297).

  • Andrade, C. and Martinez, I., Calibration by gravimetric losses of electrochemical corrosion rate measurement using modulated confinement of the current. Mater. Struct. Constr., 2005, 38(283), 833–841; doi:10.1617/14297.

  • El Maaddawy, T. A. and Soudki, K. A., Effectiveness of impressed current technique to simulate corrosion of steel reinforcement in concrete. J. Mater. Civ. Eng., 2003, 15(1), 41–47; doi:10.1061/(ASCE)0899-1561(2003)15:1(41).

  • Ghanti, R., Effect of Impressed Current on the Microstructure of Corroded Steel–Concrete Interface, Imperial College, London, UK, 2012.

  • Ballim, Y. and Reid, J. C., Reinforcement corrosion and the deflection of RC beams – an experimental critique of current test methods. Cem. Concr. Compos, 2003, 25(6), 625–632; doi:10.1016/S0958-9465(02)00076-8.

  • Meda, A., Mostosi, S., Rinaldi, Z. and Riva, P., Experimental evaluation of the corrosion influence on the cyclic behaviour of RC columns. Eng. Struct., 2014, 76, 112–123.

  • BIS, IS-13920:1993, Ductile detailing of reinforced concrete structures subjected to seismic forces – code of practice. Bureau of Indian Standard, 2002, 1993 (reaffirmed 1998).

  • BIS, IS 456:2000, Plain and reinforced concrete – code of practice. Bureau of Indian Standard, 2000.

  • IS 10262:2009, Indian Standard for Concrete Mix Proportioning (First Revision), Bureau of Indian Standards, 2009.

  • Xia, J., Jin, W. and Li, L., Performance of corroded reinforced concrete columns under the action of eccentric loads. J. Mater. Civ. Eng. ASCE, 2016, 28(2001), 1–16; doi:10.1061/(ASCE)MT.1943-5533.0001352.

  • Revie, R. W., Uhlig’s Corrosion Handbook, Wiley Sons, 2011, 3rd edn, pp. 1–15.

  • Ma, Y., Che, Y. and Gong, J., Behavior of corrosion damaged circular reinforced concrete columns under cyclic loading. Constr. Build. Mater., 2012, 29, 548–556; doi:10.1016/j.conbuildmat.2011.11.002.

  • Zhang, G., Cao, X. and Fu, Q., Experimental study on residual strength of concrete confined with corroded stirrups. Can. J. Civ. Eng., 2016, 590, 583–590.

  • ASTM:G1-03 (reapproved: 2011), Standard practice for preparing, cleaning, and evaluating corrosion test. Am. Soc. Test Mater., 2011, 1–9; doi:10.1520/G0001-03R11.2.

  • Abosrra, L., Ashour, A. F. and Youseffi, M., Corrosion of steel reinforcement in concrete of different compressive strengths. Constr. Build. Mater., 2011, 25(10), 3915–3925; doi:10.1016/j.conbuildmat.2011.04.023.


Abstract Views: 235

PDF Views: 89




  • Calibration of Accelerated Corrosion Protocol for Reinforced Concrete Columns

Abstract Views: 235  |  PDF Views: 89

Authors

Aditya Singh Rajput
Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, India
Umesh Kumar Sharma
Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, India

Abstract


Researchers globally have adopted different techniques for simulating the effects of corrosion on reinforced concrete (RC) sections in different experimental studies. Application of Faraday’s law remains the most commonly used technique for designing and controlling accelerated corrosion regimes for testing RC sections. In this study, we analyse the competence of Faraday’s law-based methodology to simulate corrosion of RC structures in laboratory conditions. Twelve small-scale (300 × 300 × 500 mm) RC columns were subjected to Faraday’s law-based accelerated corrosion regime. Variables of the study were the degree of corrosion and grade of concrete. Damage in the RC section due to corrosion was evaluated in terms of surface distress, corrosion cracking, surface strain and gravimetric examination. Monitoring of the corrosion process through potentiometric measurements and comparing the results with the obtained gravimetric results yielded calibration factors for Faraday’s law-based procedure. The proposed calibration factors were then validated by designing and testing accelerated corrosion for large-scale RC columns.

Keywords


Accelerated Corrosion, Calibration, Faraday’s Law, RC Members.

References





DOI: https://doi.org/10.18520/cs%2Fv118%2Fi1%2F70-78