Nondestructive Testing of Mortar Specimens Using the Microwave Free-Space Method
Publication: Journal of Materials in Civil Engineering
Volume 15, Issue 2
Abstract
The results of nondestructive testing of mortar specimens using a simple and inexpensive microwave measurement system are presented. Temporal dependencies of amplitude of reflection and transmission coefficients at x band for the specimens made with different water-to-cement ratio (w/c) are given. It is shown that there is a strong correlation between the measured results and w/c. The results also demonstrate the influence of curing conditions and the effects of aging.
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References
ASTM C-33. (1990). “Standard specification for concrete aggregates.” Annual book of ASTM standards. C-33, West Conshohocken, Pa.
Bois, K. J., Benally, A. D., Nowak, P. S., and Zoughi, R.(1999). “Cure-state monitoring and water-to-cement ratio determination of fresh portland cement-based materials using near-field microwave techniques.” IEEE Trans. Instrum. Meas., 47(3), 628–637.
Bois, K. J., Benally, A. D., and Zoughi, R.(2000). “Microwave near-field reflection property analysis of concrete for material content determination.” IEEE Trans. Instrum. Meas., 49(1), 49–55.
Ghodgaonkar, D. K., Varadan, V. V., and Varadan, V. K.(1989). “A free-space method for measurements of dielectric constants and loss tangents at microwave frequencies.” IEEE Trans. Instrum. Meas., 37(3), 789–793.
Halabe, U. B., Sotoodehnia, A., Maser, K. R., and Kausel, E. A.(1993). “Modeling the electromagnetic properties of concrete.” ACI Mater. J., 90(Nov–Dec.), 552–563.
Lasri, T., Glay, D., Achrait, L., Mamoni, A., and Leriy, Y.(2000). “Microwave methods and systems for nondestructive control.” Subsurface Sensing Technol. Appl., 1(1), 141–160.
Ma, Z., and Okamura, S.(1999). “Permittivity determination using amplitudes of transmission and reflection coefficients at microwave frequency.” IEEE Trans. Microwave Theory Tech., 47(5), 546–550.
McCan, D. M., and Forde, M. C.(2001). “Review of NDT methods in the assessment of concrete and masonry structures.” NDT & E Int., 34(2), 71–84.
Mehta, P. K. (1986). Concrete: Structure, properties, and materials, Prentice-Hall, Englewood Cliffs, N.J. ISBN 0-13-167115-4 01.
Neville, A. M., (1995). Properties of concrete, 4th Ed., Longman Group, London.
Neville, A. M., and Brooks, J. J. (1993). Concrete technology, Longman Group, London.
Nyfors, E.(2000). “Industrial microwave sensors—A review.” Subsurface Sensing Technol. Appl., 1(1), 23–43.
Nyfors, E., and Vainikainen, P. (1989). Industrial Microwave Sensors, Artech House, Boston.
Popovics, S. (1992). Concrete materials: Properties, specifications, and testing, 2nd Ed., Noyes Pubs, N.J.
Postaciolu, B. (1986). Concrete, Press Technicians, Istanbul, Turkey (in Turkish).
Rhim, H. C., and Büyüköztürk, O.(1998). “Electromagnetic properties of concrete at microwave frequencies range.” ACI Mater. J., 95(3), 262–271.
Somlo, P. I., and Hunter, J. D., (1985). Microwave impedance measurement, Peter Peregrines, London.
Trabelsi, S., Kraszewski, A. W., and Nelson, S.(1998). “Nondestructive microwave characterization for determining the bulk density and moisture content of shelled corn.” Meas. Sci. Technol., 9, 1548–1556.
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Copyright © 2003 American Society of Civil Engineers.
History
Received: Jul 17, 2001
Accepted: Apr 22, 2002
Published online: Mar 14, 2003
Published in print: Apr 2003
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