Laboratory Evaluation of Select Methods of Corrosion Prevention in Reinforced Concrete Bridges
Source abstract
Abstract
Sixteen reinforced concrete laboratory specimens were used to evaluate a number of corrosion prevention methods under an accelerated (6 months) testing program. The use of galvanic thermal sprayed zinc, galvanic embedded anodes, a tri-silane sealer, an acrylic coating, and an epoxy/polyurethane coating was evaluated. The specimens received various treatments prior to exposure to accelerated corrosion. The performance of the treatments was evaluated with respect to corrosion currents, chloride ingress, extent of cracking, severity of rust staining, and visual inspection of the reinforcing steel after the conclusion of testing and dissection. Results indicated that the tri-silane sealer, the conjoint use of galvanic thermal sprayed zinc and epoxy/polyurethane coating, the epoxy/polyurethane coating, and acrylic coating performed better than the other methods tested. Higher chloride concentrations were measured in the vicinity of embedded zinc anodes.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete Corrosion and Durability · Corrosion Behavior and Inhibition · Smart Materials for Construction
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
Show source-provided references
1. Abosrra, L., Ashour, A. F., & Youseffi, M. (2011). Corrosion of steel reinforcement in concrete of different compressive strengths. Construction and Building Materials,25, 3915–3925.10.1016/j.conbuildmat.2011.04.023 ↗
2. American Concrete Institute Committee 222. (2001). ACI 222R-01: Protection of metals in concrete against corrosion. American Concrete Institute, Committee 222 Report.
3. Austin, S. A., Lyons, R., & Ing, M. J. (2004). Electrochemical behavior of steel-reinforced concrete during accelerated corrosion testing. Corrosion,60(2), 203–212.10.5006/1.3287722 ↗
4. Ball, J. C. & Whitmore, D. W. (2003). Corrosion mitigation systems for concrete structures. Concrete Repair Bulletin, 6–11. http://www.icri.org/publications/2003/PDFs/julyaug03/CRBJulyAug03_Ball.pdf .
5. Brown, M. C. (1999). Assessment of commercial corrosion inhibiting admixtures for reinforced concrete (p. 163). Blacksburg: s.n. ETD-122199-104756.
6. Daily, S. F. & Green, W. K. (2005). Galvanic cathodic protection of reinforced and prestressed concrete structures using CORRSPRAY—a thermally sprayed aluminum alloy (p. 8). s.l.: Corrpro Companies, Inc. Technical Paper 51.
7. El Maaddawy, T. A., & Soudki, K. A. (2003). Effectiveness of impressed current technique to simulate corrosion of steel reinforcement in concrete. Journal of Materials in Civil Engineering,15, 41–47.10.1061/(ASCE)0899-1561(2003)15:1(41) ↗
8. El-Reedy, M. A. (2008). Steel-reinforced concrete structures: Assessment and repair of corrosion (p. 216). Boca Raton: Taylor & Francis Group. ISBN 978-1-4200-5430-9.
9. Emmons, P. H. (1993). Concrete repair and maintenance illustrated (p. 295). Kingston, MA: RS Means. ISBN 9-780876-292860.
10. Federal Highway Administration. (1998). Corrosion protection: Concrete bridges. Report No. FHWA-RD-98-088, Federal Highway Administration, Turner-Fairbank Highway Research Center. [Online] http://www.tfhrc.gov/structur/corros/corros.htm . Accessed on 2008.
11. Germann Instruments. (2006). RCT & RCTW. Summary of Germann Instruments. [Online]. Retrieved November 29, 2008 from www.germann.org/Pages/Products/RCT%20og%20RCTW/RCT%20og%20RCTW.htm .
12. Holcomb, G. R., Covino Jr, B. S., Cramer, S. D., Russell, J. H., Bullard, S.J., & Collins, W. K. (2002). Humectants to augment current from metallized zinc cathodic protection systems on concrete (p. 122). Oregon Department of Transportation, Salem, OR, Report FHWA-OR-RD-03-08.10.2172/808092 ↗
13. Michel, A., et al. (2011). Monitoring reinforcement corrosion and corrosion induced cracking using non-destructive X-ray attenuation measurements. Cement and Concrete Research,41, 1085–1094.10.1016/j.cemconres.2011.06.006 ↗
14. Mullard, A., & Stewart, M. G. (2011). Corrosion-induced cover cracking: New test data and predictive models. ACI Structural Journal,108(1), 71–79.
15. Ray, I., Parish, G., Davalos, J., & Chen, A. (2011). Effect of concrete substrate repair methods for beams aged by accelerated corrosion and strengthened with CFRP. Journal of Aerospace Engineering,24(2), 227–239.10.1061/(ASCE)AS.1943-5525.0000030 ↗
16. Tabatabai, H., Ghorbanpoor, A. & Turnquist-Nass, A. (2005). Rehabilitation techniques for concrete bridges. Wisconsin Department of Transportation Report for project No. 0092-01-06, p. 309.
17. Tabatabai, H., Pritzl, M. D. & Ghorbanpoor, A. (2009). Evaluation of select methods of corrosion prevention, corrosion control, and repair in reinforced concrete bridges (p. 343). Madison, WI: Wisconsin Highway Research Program, Report No. WHRP 09-04.
18. Weyers, R. E., Chamberlin, W. P., Hoffman, P., & Cady, P. D. (1994). Concrete bridge protection and rehabilitation: Chemical and physical techniques—service life estimates (p. 357). Strategic Highway Research Program—National Research Council, Washington, DC, Report SHRP-S-668.