Detecting Corrosion of Steel Prestressing Strands Using Acoustic Emission

##plugins.themes.bootstrap3.article.main##

##plugins.themes.bootstrap3.article.sidebar##

Mohamed K. ElBatanouny Jesé Mangual Paul Ziehl Fabio Matta

Abstract

America’s transportation infrastructure has been receiving intensive public and private attention in recent years, particularly highway bridges. Corrosion of reinforcement steel is a main durability issue especially for concrete structures present in coastal areas and in areas where de-icing salts are routinely used.Acoustic emission (AE) is a promising method for detecting corrosion in steel reinforced concrete members. This type of non-destructive testing (NDT) method primarily measures the magnitude of energy released within a material when physically strained. The expansive ferrous product resulting from corrosion induces pressure at the steel-concrete interface creating micro-cracks which can be detected by AE sensors. In this study, five concrete blocks with embedded prestressing steel strands were built and tested under accelerated corrosion conditions to evaluate possible correlations between AE activity and the onset and progression of corrosion. AE data along with half-cell potential measurements were recorded during the test to determine the stages and the overall deterioration process. Afterwards, the steel strands were removed from the specimens, cleaned and weighed; then the results were evaluated vis-à-vis Faraday’s law with respect to the degree of corrosion present in each block.

How to Cite

K. ElBatanouny, M. ., Mangual, . J. ., Ziehl, P. ., & Matta, F. (2010). Detecting Corrosion of Steel Prestressing Strands Using Acoustic Emission. Annual Conference of the PHM Society, 2(1). https://doi.org/10.36001/phmconf.2010.v2i1.1731
Abstract 91 | PDF Downloads 47

##plugins.themes.bootstrap3.article.details##

Keywords

corrosion, acoustic emission, prestressed strands, concrete blocks

References
(Almusallam, 2001) A. Almusallam. Effect of Degree of Corrosion on the Properties of Reinforcing Steel Bars, Construction and Building Materials, Volume 15, pp. 361-368, 2001.
ASTM C-876, (1991-Reapproved 1999), "Standard test method for half-cell potentials of uncoated reinforcing steel in concrete", American Standard for Testing and Materials, pp. 1-6.
ASTM G-1, (2003) "Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens”, American Standard for Testing and Materials, pp. 1-9.
(Austin et al., 2004) S. Austin, R. Lyons, and M. Ing. Electrochemical Behavior of Steel-Reinforced Concrete During Accelerated Corrosion Testing, Corrosion, Volume 60, No. 2, pp. 203-212, 2004.
(Auyeung, Balaguru and Chung, 2000) Y. Auyeung, P. Balaguru, and L. Chung, Bond Behavior of Corroded Reinforcement Bars, ACI Materials Journal, Vol. 97, No. 2, pp. 212-220, 2000.
(Fricker and Vogel, 2007). S. Fricker and T. Vogel. Site Installation and Testing of Continuous Acoustic Monitoring, Construction and Building Materials, Volume 21, pp. 501-510, 2007.
(Guthrie, et al.2002). J. Guthrie, B. Battat, and C. Grethlein. Guthrie, Accelerated Corrosion Testing,
The AMPTIAC Quarterly, Vol. 6, No. 3, pp. 11-14,2002.
(Inaudi, et al., 2009) D. Inaudi, L. Manetti, B. Glisic,
Reinforced Concrete Corrosion Wireless Monitoring System, 4th International Conference on Structural Health Monitoring on Intelligent Infrastructure (SHMII-4), pp. 2-7, 2009.
(Jaffer and Hansson, 2009). S. Jaffer and C. Hansson. Chloride-Induced Corrosion Products of Steel in Cracked-Concrete Subjected to Different Loading Conditions, Cement and Concrete Research, Volume 39, pp. 116-125, 2009.
(Li, et al., 1998). Z. Li, A. Zdunek, E. Landis, and S. Shah. Application of Acoustic emission Technique to Detection of Reinforcing Steel Corrosion in Concrete, ACI Materials Journal, Vol. 95, No. 1, pp. 68-76, 1998.
(Liu and Weyers, 1998) Y. Liu and R. Weyers. Modeling the Time-to-Corrosion Cracking in Chloride Contaminated Reinforced Concrete Structures, ACI Materials Journal, No. 95-M65, pp 675-680, 1998.
(Ohtsu, M., and Tomoda, Y., 2008), M. Ohtsu, and Y. Tomoda. Phenomenological Model of Corrosion Process in Reinforced Concrete Identified by Acoustic Emission, ACI Materials Journal, V ol. 105, No. 2, pp. 194-199, 2008.
(Ridge, and Ziehl, 2006) A. Ridge and P. Ziehl. Evaluation of Strengthened Reinforced Concrete Beams:Cyclic Load Test and Acoustic Emission Methods, ACI Structural Journal, Technical paper 103-S84, pp. 832-841, 2006.
(Seah, et al., 1993) K. Seah, K. Lim,S. Chew, and S. Teoh. The Correlation of Acoustic Emission with Rate of Corrosion, Corrosion Science, Vol. 34, No. 10, pp. 1707-1713, 1993.
(Yoon, et al., 2000) D. Yoon, W. Weiss and S. Shah. Assessing Damage in Corroded Reinforced Concrete Using Acoustic Emission, Journal of Engineering Mechanics, Vol. 126, No. 3, pp. 273- 283, 2000.
Section
Poster Presentations