Odile Abraham is a researcher of the geophysics section of the Laboratoire Central des Ponts et Chaussées in France. She graduated from the Ecole Nationale des Travaux Publics de l'Etat, France, in 1990. She obtained her Ph.D. in mechanical engineering from the University of Wales College of Cardiff, United Kingdom, in 1993. Her research interests include seismic methods for non destructive testing of concrete and sub-surface geophysics.

Richard Benson has forty years of professional experience in the Applied Earth Sciences. He formed Technos, Inc. in 1971 and has pioneered the application of many geophysical methods for environmental and geotechnical projects....

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