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Coaxial transmission lines: development test of procedures for concrete

Shaari, A. and Millard, S. G. and Al-Qadi, I. L. and Shaw, M. R. and Riad, S. M. and Bungey, J. H. (2001) Coaxial transmission lines: development test of procedures for concrete. Journal of Materials in Civil Engineering, 13 (3). pp. 202-208. ISSN 0899-1561

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Abstract

The use of ground-penetrating radar as a nondestructive investigative technique has gained increasing acceptance both in the United States and in Europe for assessing the structural integrity of concrete structures. However, without an accurate knowledge of the electrical properties of concrete at radar frequencies, it is difficult to quantitatively assess the results of a ground-penetrating radar survey. This paper reports the simultaneous, but independent, developments of two coaxial transmission line systems at Virginia Tech and The University of Liverpool. Both are designed to measure the relative permittivity and conductivity of concrete over a range of frequencies from 100 MHz to 1 GHz. This paper discusses the development of the two transmission lines, and a comparison of the two methods of measurement and interpretation of results.

Item Type:Article
Uncontrolled Keywords:electric transmission line, concrete, nondestructive test
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:6835
Deposited By: Dr. Amiruddin Shaari
Deposited On:12 Nov 2008 04:09
Last Modified:01 Jun 2010 15:47

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