Using ground penetrating radar and time–frequency analysis to characterize construction materials

Abstract For decades, applications of nondestructive evaluation-civil engineering (NDE-CE) focus on object identifications (such as steel bars, tendon ducts and backwall reflections) in infrastructures. Because of the advantage of efficient visualization of internal structure, utilization of these methods can probably be extended to material characterization (MC) of aging and adversely exposed infrastructures. However, two factors yield a big gap between NDE and MC. First, for the ease of visualization, the primary focus of NDE-signal processing is object identification, which usually alters the originality of the signal. Second, there is lack of relationship and inverse models bridging the NDE-derived and conventional material properties compared to other disciplines of science, such as geophysics. These disadvantages make laboratory and field-scale NDE-MC still a far-reaching holy grail and is possibly the greatest hurdle to be regularly adopted in CE structures. This paper attempts to address this gap from object identification to MC using ground penetrating radar (GPR) as one of the most frequently used NDE-CE methods, and signal processing with joint time–frequency domain (JTFA) analysis. Three examples of material property characterization regarding the individual effects of steel bar corrosion in concrete, hydration and moisture content distribution of construction materials are given.

[1]  V. M. Malhotra,et al.  CRC Handbook on Nondestructive Testing of Concrete , 1990 .

[2]  M. Uschold,et al.  Methods and applications , 1953 .

[3]  Johannes Hugenschmidt,et al.  GPR inspection of concrete bridges , 2006 .

[4]  Oral Büyüköztürk.  Imaging of concrete structures , 1998 .

[5]  Martin Krause,et al.  3D-visualisation of NDT data using a data fusion technique , 2003 .

[6]  J. Rhazi,et al.  Non-destructive evaluation of concrete moisture by GPR: Experimental study and direct modeling , 2005 .

[7]  Chi Sun Poon,et al.  Characterization of concrete properties from dielectric properties using ground penetrating radar , 2009 .

[8]  Michael Forde,et al.  The application of time domain ground penetrating radar to evaluate railway track ballast , 1999 .

[9]  G. P. de Loor,et al.  The Dielectric Properties of Wet Materials , 1983 .

[10]  W. L. Lai,et al.  Characterization of pore systems of air/water-cured concrete using ground penetrating radar (GPR) through continuous water injection , 2008 .

[11]  M. A. K. Hamid,et al.  Monitoring of Concrete Curing Process by Microwave Terminal Measurements , 1972, IEEE Transactions on Industrial Electronics and Control Instrumentation.

[12]  D. Daniels.  Ground Penetrating Radar , 2005 .

[13]  Herbert Wiggenhauser,et al.  A Study of Concrete Hydration and Dielectric Relaxation Mechanism Using Ground Penetrating Radar and Short-Time Fourier Transform , 2010, EURASIP J. Adv. Signal Process..

[14]  W L Lai,et al.  Detection of accelerated reinforcement corrosion in concrete by ground penetrating radar , 2010, Proceedings of the XIII Internarional Conference on Ground Penetrating Radar.

[15]  Doreen Streicher,et al.  Results of reconstructed and fused NDT-data measured in the laboratory and on-site at bridges , 2006 .

[16]  A. P. Annan.  Chapter 1 – Electromagnetic Principles of Ground Penetrating Radar , 2009 .

[17]  Steve Millard,et al.  Dielectric properties of concrete and their influence on radar testing , 2000 .

[18]  Martin Krause,et al.  2D- and 3D-visualisation of NDT-data using data fusion technique , 2005 .

[19]  Imad L. Al-Qadi,et al.  Optimization of antenna configuration in multiple-frequency ground penetrating radar system for railroad substructure assessment , 2010 .

[20]  J. H. Bungey,et al.  SUB-SURFACE RADAR TESTING OF CONCRETE: A REVIEW , 2004 .

[21]  Harry M. Jol,et al.  Ground penetrating radar : theory and applications , 2009 .

[22]  S. Qian,et al.  Joint time-frequency analysis , 1999, IEEE Signal Process. Mag..

[23]  George Stavrakakis,et al.  Geophysical methods contributing to the testing of concrete dams. Application at the Marathon Dam , 2002 .

[24]  Johannes Hugenschmidt,et al.  Railway track inspection using GPR , 2000 .

[25]  Mk Meint Smit,et al.  Microwave study of hydrating cement paste at early age , 1982 .

[26]  Christopher L. Barnes,et al.  Improved concrete bridge deck evaluation using GPR by accounting for signal depth–amplitude effects , 2008 .

[27]  M. Forde,et al.  Review of NDT methods in the assessment of concrete and masonry structures , 2001 .

[28]  J. Hugenschmidt,et al.  Concrete bridge inspection with a mobile GPR system , 2002 .

[29]  Hong C. Rhim.  Condition monitoring of deteriorating concrete dams using radar , 2001 .

[30]  G. Klysz,et al.  Determination of volumetric water content of concrete using ground-penetrating radar , 2007 .