Determination of electrical properties of early-age concrete using near-field microwave techniques

Author

Chung, Kwok L. ; Kharkovsky, Sergey

Author_Institution

Inst. for Infrastruct. Eng., Univ. of Western Sydney, Sydney, NSW, Australia

fYear

2014

fDate

4-6 Aug. 2014

Firstpage

104

Lastpage

105

Abstract

Experimental investigation of electrical properties of Portland cement concretes (PCCs) at microwave frequencies is presented in this paper. An equivalent electric circuit including conductance and susceptance is used for modeling of electrical properties of PCC specimens at early ages. Experimental results demonstrate that electric conductance can be used to identify the different subsurface moisture content of the PCCs, and thereby mechanical properties of PCCs can be predicted.

Keywords

cements (building materials); concrete; electric admittance; equivalent circuits; mechanical properties; PCC specimens; PCCs; Portland cement concretes; early-age concrete; electric conductance; electrical property modeling; equivalent electric circuit; mechanical properties; near-field microwave techniques; subsurface moisture content identification; Concrete; Frequency measurement; Microwave circuits; Microwave frequencies; Complex admittance; microwave measurements; open-ended waveguide probe; water-to-cement ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics (iWEM), 2014 IEEE International Workshop on

Conference_Location

Sapporo

Type

conf

DOI

10.1109/iWEM.2014.6963657

Filename

6963657