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

C. McCague, M. Fabian, T. Sun, K. T. V. Grattan, S. Shi, Y. Bai

Abstract

In this paper, the suitability of using ‘intelligent’ fibre Bragg gratings (FBGs) as sensors for the temperature feed-back 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.

Keywords

Fibre Bragg gratings, temperature monitoring, microwave curing

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IMEKO-TC19-2014-015.pdf

DOI

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IMEKO TC

TC19 - Environmental Measurements

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