Abstract

The cause for the decrease in light transmission in optical fibers embedded in reinforced concrete beams with flexural deformation was investigated. It was determined that optical fibers in such beams have multiple bends as a result of chaotic movement of gravel particles during the shrinkage of the concrete mixture. The results of field and model experiments are presented, which indicate that the probable reasons for the decrease in light transmission in optical fibers embedded in reinforced concrete beams, observed when the latter are bent, are local changes in the parameters of the optical fibers in regions with sharp bends accompanying beam deformation.

© 2018 Optical Society of America

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