Lessons Learned from Nondestructive Testing of Concrete Structures with Complementary Stress Wave-Based Methods

Cradle-to-grave asset management of the existing infrastructure requires continuous condition assessment and health monitoring of the structural elements. Nondestructive testing (NDT) methods can be used for this purpose to ensure safety and serviceability, to predict the cost of repair and the extent of maintenance activities, and to develop appropriate prediction models for damage prognosis and estimation of system’s remaining useful life. Two NDT methods for performance monitoring of concrete structures are the impact echo (IE) and the ultrasonic surface waves (USW). The objective of this paper is to summarize the lessons learned from the application of the IE and USW methods to evaluate different concrete infrastructure. The results from testing several concrete bridge decks, concrete slabs, and tunnels with the Portable Seismic Property Analyzer (PSPA) are used for this purpose. The limitations and strengths of the IE and USW methods separately and in combination in detecting and locating defects within the concrete are highlighted through case studies.

References
1. Gucunski, N., S. Antoljak, and A. Maher. “Seismic Methods in Post-Construction Condition Monitoring of Bridge Decks,” In Use of Geophysical Methods in Construction, Geotechnical Special Publications, No. 108 (S. Nazarian and J. Diehl, eds.), GeoInstitute, ASCE, Reston, V.A., 2000, pp. 35–51. 2. Yuan, D., and S. Nazarian. Feasibility of Detecting Flaws in Concrete Walls of Nuclear Power Plants. A report for Jet Propulsion Laboratory, California Institute of Technology, Center for Highway Materials Research, the University of Texas at El Paso, 2000. 3. Sansalone, M.J., and W. B. Streett. Impact-Echo: Nondestructive Evaluation of Concrete and Masonry. Bullbrier Press, Ithaca, New York, 1997. 4. Cheng, C.C. and M. Sansalone. “The Impact-Echo Response of Concrete Plates Containing Delaminations: Numerical, Experimental and Field Studies,” Journal of Materials and Structures, Vol. 26, No. 5, 1993, 274-285. 5. Nazarian, S., M.R. Baker, and K. Crain. Development and Testing of a Seismic Pavement Analyzer. Report SHRP-H-375. Strategic Highway Research Program, National Research Council, Washington, D.C., 1993. 6. Desai, M. and S. Nazarian. “Automated Surface Wave Method: Field Testing,” Journal of Geotechnical Engineering, ASCE, Vol. 119, No. 7, 1993, pp. 1094-1111. 7. Nazarian, S., and D. Yuan. Evaluation and Improvement of Seismic Pavement Analyzer. Research Project 7– 2936. Center for Highway Materials Research, University of Texas at El Paso, 1997. 8. Azari, H. Optimization of Stress Wave-Based Nondestructive Methods in Identifying Deterioration in Concrete Structures. PhD Dissertation, the University of Texas at El Paso, El Paso, Texas, 2013.
Metrics
Usage Shares
Total Views
15 Page Views
Total Shares
0 Tweets
15
0 PDF Downloads
0
0 Facebook Shares
Total Usage
15