Title :
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
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;
Conference_Titel :
Electromagnetics (iWEM), 2014 IEEE International Workshop on
Conference_Location :
Sapporo
DOI :
10.1109/iWEM.2014.6963657
