Corrosion monitoring of reinforced concrete structures by using the 14 MeV tagged neutron beams

D. Sudac; K. Nad; J. Obhodas; V. Valkovic

doi:10.1117/12.918247

9 May 2012 Corrosion monitoring of reinforced concrete structures by using the 14 MeV tagged neutron beams

D. Sudac, K. Nad, J. Obhodas, V. Valkovic

Proceedings Volume 8366, Advanced Environmental, Chemical, and Biological Sensing Technologies IX; 83660B (2012) https://doi.org/10.1117/12.918247
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

The maintenance and repair of reinforced concrete structures, especially those submerged in the sea-water, require effective inspection and monitoring techniques for assessing the state of corrosion in reinforcement material. An underwater inspection system was developed which is able to monitor the reinforcement corrosion. The system is ROV equipped with the sealed tube neutron generator (NG). By rotating the NG and by using the associated alpha particle technique it is possible to measure the concrete cover depth together with the reinforcing bar diameter. The possibility to estimate the carbon and chloride content in the concrete was investigated. Iron plates of different thickness, covered by 6 cm thick concrete block, were successfully detected and the thickness of the concrete cover was estimated. In addition, reinforced bar of one and three centimeters in diameter was identified and measured.

Citation Download Citation

D. Sudac, K. Nad, J. Obhodas, and V. Valkovic "Corrosion monitoring of reinforced concrete structures by using the 14 MeV tagged neutron beams", Proc. SPIE 8366, Advanced Environmental, Chemical, and Biological Sensing Technologies IX, 83660B (9 May 2012); https://doi.org/10.1117/12.918247

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