Application of fibre Bragg gratings for the optimization of microwave-cured concrete

McCague, C., Fabian, M., Sun, T., Grattan, K. T. V., Shi, S. & Bai, Y. (2014). Application of fibre Bragg gratings for the optimization of microwave-cured concrete. Paper presented at the 5th Symposium on Environmental Instrumentation and Measurements, 23-24 Sep 2014, Chemnitz, Germany.

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Abstract

In this paper, the suitability of using ‘intelligent’ fibre Bragg gratings (FBGs) as sensors for the temperature feedback control of concrete cured in a microwave environment has been presented and experimentally demonstrated. In this novel approach, the temperature data provided by the embedded FBGs are processed on the fly (using a feedback control algorithm) in order to regulate the microwave power so that an internal curing temperature of 70°C is maintained. The immunity of the FBGs to microwave radiation ensures that the embedded sensors remain stable, unlike conventional metallic/electrical probes.

Item Type: Conference or Workshop Item (Paper)
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/17173

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