Detection of active corrosion in reinforced and prestressed concrete - Overview of NIST TIP project

M. A. Gonzalez-Nunez, Antonio Nanni, F. Matta, P. Ziehl

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The US transportation infrastructure has been receiving intensive public and private attention in recent years. The Federal Highway Administration estimates that 42 percent of the nearly 600,000 bridges in the Unites States are in need of structural or functional rehabilitation1. Corrosion of reinforcement steel is the main durability issue for reinforced and prestressed concrete structures, especially in coastal areas and in regions where de-icing salts are regularly used. Acoustic Emission (AE) has proved to be a promising method for detecting corrosion in steel reinforced and prestressed concrete members. This type of non-destructive test method primarily measures the magnitude of energy released within a material when physically strained. The expansive ferrous byproducts resulting from corrosion induce pressure at the steel-concrete interface, producing longitudinal and radial microcracks that can be detected by AE sensors. In the experimental study presented herein, concrete block specimens with embedded steel reinforcing bars and strands were tested under accelerated corrosion to relate the AE activity with the onset and propagation stages of corrosion. AE data along with half cell potential measurements and galvanic current were recorded to examine the deterioration process. Finally, the steel strands and bars were removed from the specimens, cleaned and weighed. The results were compared vis-à-vis Faraday's law to correlate AE measurements with degree of corrosion in each block.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7983
DOIs
StatePublished - May 24 2011
EventNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011 - San Diego, CA, United States
Duration: Mar 7 2011Mar 10 2011

Other

OtherNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
CountryUnited States
CitySan Diego, CA
Period3/7/113/10/11

Fingerprint

Prestressed concrete
Corrosion
Acoustic Emission
Steel
acoustic emission
Reinforced concrete
Acoustic emissions
corrosion
steels
strands
Snow and ice removal
Highway administration
nondestructive tests
Concrete blocks
ice formation
concrete structures
Microcracks
Concrete Structures
Durability
microcracks

Keywords

  • acoustic emission
  • corrosion
  • durability
  • prestressed concrete
  • reinforced concrete

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Gonzalez-Nunez, M. A., Nanni, A., Matta, F., & Ziehl, P. (2011). Detection of active corrosion in reinforced and prestressed concrete - Overview of NIST TIP project. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7983). [79832I] https://doi.org/10.1117/12.880416

Detection of active corrosion in reinforced and prestressed concrete - Overview of NIST TIP project. / Gonzalez-Nunez, M. A.; Nanni, Antonio; Matta, F.; Ziehl, P.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7983 2011. 79832I.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gonzalez-Nunez, MA, Nanni, A, Matta, F & Ziehl, P 2011, Detection of active corrosion in reinforced and prestressed concrete - Overview of NIST TIP project. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7983, 79832I, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, San Diego, CA, United States, 3/7/11. https://doi.org/10.1117/12.880416
Gonzalez-Nunez MA, Nanni A, Matta F, Ziehl P. Detection of active corrosion in reinforced and prestressed concrete - Overview of NIST TIP project. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7983. 2011. 79832I https://doi.org/10.1117/12.880416
Gonzalez-Nunez, M. A. ; Nanni, Antonio ; Matta, F. ; Ziehl, P. / Detection of active corrosion in reinforced and prestressed concrete - Overview of NIST TIP project. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7983 2011.
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