Investigation of Corrosion Behavior of Dual Phase Steel Reinforcement and Structural Steel Reinforcement in Concrete
DOI:
https://doi.org/10.46881/ajsn.v4i0.64Keywords:
Dual phase steel (DPS), structural steel, reinforcement, concrete, corrosion, potentialAbstract
An experimental study of the corrosion protection and evaluation of dual phase steel reinforcement in concrete is reported. The protection against corrosion of dual phase steel (DPS) reinforcement was compared to the behavior of structural steel reinforcement. The steel reinforcements were coated with local coating materials, namely enamel paints and bitumen coatings. The simulated environment was a 0.5M NaCl solution. The study reveals that the structural steel reinforcement offered a definite pattern, stabilized and better corrosion protection as against dual phase steel reinforcement alongside any coating used. The potentials of the coated reinforcements at the end of the eight weeks of experiment are -124mV and -61mV for control sample of DPS and structural steel reinforcement, -168mV and -111mV for DPS and structural steel reinforcement coated with enamel paint coating, and-185mV and -159mV for DPS and structural steel reinforcement coated with bitumen coating respectively. Therefore, it was concluded that the high strength advantage of dual phase steels over structural steels in concrete reinforcement cannot be an advantage in a corrosive environment.
References
Akinyemi, O. O. & Alamu, O. J. (2009). Effect of 0.05M NaCl on Corrosion of Coated Reinforcing Steels in Concrete.Pacific Journal of Science and Technology,10 (1), 462-471.
Auyeung Y, Balaguru P. & Chung L.(2002). Bond Behavior of Corroded Reinforcement Bars. ACI Material, 97 (2): 214-220.
Bleck W., Frehn A., & Ohlert J., 2001. Niobium in dual phase and TRIP steel, In: Proceedings of Int. conference of Niobium, Orlando (FI).
Darwin D., Browning J., Nguyen T. V., & Locke C. E. (2002). Mechanical and Corrosion Properties of a High - Strength High Chromium Reinforcing Steel for Concrete. SD2001-05-F, Lawrence, KS.
De-Rincon O. (2000). Manual for inspecting, evaluating and diagnosing corrosion in reinforced concrete structures.1st Edition, Maracaibo, Venezuela.
Ezeh J. C. (1992). Corrosion Control of Reinforced Concrete. In: Proceedings of Corrosion, Nigeria Corrosion Association (NICA).
Fakolulu O. S. (1997). Corrosion Behavior of Aluminum, Brass and Steel in Cocoa and Cassava Juice, Unpublished B.Tech Project Re p o r t i n M e c h a n i c a l E n g i n e e r i n g Department, Ladoke Akintola University of Technology, Ogbomosho. pp.12.
Gannon E. J. & Cady P.D.(1993). Corrosion Evaluation of Concrete Bridge, Relative to Reinforcement Corrosion- State of Art of Existing Method. Strategic Highway Research Program Report, Vol. 1, SHRP-S-323.
H a j r a S. K . ( 1 9 9 7 ) . M a t e r i a l S c i e n c e a n d Processes. SreeSarawaty Press Ltd, India. pp.370.
Lasisi J. O.(1997). Effects of Cashew Juice on Inhibition of Mild Steel in Aqueous Solution. Unpublished B.Tech, Project Report in Mechanical Engineering Department, Ladoke Akintola University of Technology, Ogbomosho. pp.2.
Manning D. G. (1996). Corrosion Performance of Epoxy-Coated Reinforcing Steel: North American Experience. Construction and Building Materials, 10 (5), 349-365.
Rashid M. S. (1981). Dual phase steel. Annual Review of Material Science. Vol. 11 pp. 245-266.
Sagues A. A., Power R. G., and Locke C. E. (1994). Corrosion Processes and Field Performance of Epoxy-Coated Reinforcing Steel in Marine Structures. Corrosion 94, Paper No. 299, Houston.
Smith J. L. & Virmani Y. P. (1996). Performance of Epoxy-Coated Rebars in Bridge Decks, Report No. FHWA-RD-96-092, Washington, DC.
Wilmot R. E. (2007). Corrosion protection of reinforcement for concrete structures. The Journal of the Southern African Institute of Mining and Metallurgy. Vol. 107 pp..139-146.
