Near-field microwave reflection property analysis of concrete using open-ended rectangular waveguides at S- and X-band

Karl J. Bois; Aaron D. Benally; Reza Zoughi

doi:10.1117/12.301534

31 March 1998 Near-field microwave reflection property analysis of concrete using open-ended rectangular waveguides at S- and X-band

Karl J. Bois, Aaron D. Benally, Reza Zoughi

Author Affiliations +

Proceedings Volume 3396, Nondestructive Evaluation of Materials and Composites II; (1998) https://doi.org/10.1117/12.301534
Event: Non-Destructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1998, San Antonio, TX, United States

Abstract

Near-field nondestructive reflection property characterization of concrete based materials using open-ended rectangular waveguide probes is presented. The statistical distribution of multiple reflection property measurements are used as a tool to determine the water-to-cement (w/c) ratio as well as the coarse aggregate volumetric distributions in several concrete mixtures. These results may be used to determine the compressive strength of concrete. In this effort, concrete specimens with 0.50 w/c ratio were used. For these specimens sand-to-cement (s/c) ratio of 1.0 was used along with coarse aggregate-to-cement (ca/c) ratios of 1.0, 1.5, and 2.0, respectively. The microwave reflection coefficient of these specimens were measured at x-band (10 GHz) and S-band (3 GHz) using an HP8510 vector network analyzer. The results of these measurements, from the point of view of their probability distribution functions are presented, in addition to discussions regarding their implementation for nondestructive characterization of concrete based materials.

Citation Download Citation

Karl J. Bois, Aaron D. Benally, and Reza Zoughi "Near-field microwave reflection property analysis of concrete using open-ended rectangular waveguides at S- and X-band", Proc. SPIE 3396, Nondestructive Evaluation of Materials and Composites II, (31 March 1998); https://doi.org/10.1117/12.301534

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available