Microwave nondestructive evaluation (NDE) techniques applied to mortar have proven successful in the past for detecting mixture constitutes, salt ingress, loading and cure state monitoring. In this paper, a similar microwave NDE technique is used to evaluate reflection properties of concrete for cyclical exposure to salt ingress and loading at S-(2.6-3.95 GHz) and X-(8.2-12.4 GHz) microwave frequency bands. Four identical cubic specimens were prepared: one soaked in distilled water, one soaked in a 3%-salt solution, one soaked in a 3%-salt solution and loaded and finally one that was neither soaked nor loaded. Using both magnitude and phase of microwave reflection coefficient, it is shown that the cubes can be distinguished from one another using this technique.

Meeting Name

20th IEEE Instrumentation and Measurement Technology Conference, 2003. IMTC '03


Electrical and Computer Engineering

Keywords and Phrases

Chloride Solution; Compression Force; Compressive Strength; Concrete; Microwave Nondestructive Evaluation; Microwave Reflection Property; Microwave Reflectometry; Salt Ingress

International Standard Serial Number (ISSN)


Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2003 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.