Abstract
In this paper, we propose a system that discriminate cement-based composite including sea sand by using microwave patch antennas. The composites with sea sand have vital importance in construction engineering industry because ionised steel reinforced composites could cause life threatening damages. Firstly, to analyse cement-based composite including sea sand, 0%, 25%, 50%, 75% and 100% chlorine ionised sea sand containing concrete samples were produced and complex dielectric measurements were conducted. In addition, two 2.45GHz patch antennas were designed in microwave simulator and also it was integrated to the concrete models. Furthermore, simulated results shows that this approach could be used as a sensor with nearly 30MHz resonance shifts. Finally, proposed system was supported by experimental investigation. This type of configuration has many advantages as easy design, easy fabrication, cheap and flexible to non-destructive cement based composite measurements.
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