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Concrete Beam Testing with Optical Fiber Sensors

by D. Huston, Univ of Vermont, Burlington, United States,
P. Fuhr, Univ of Vermont, Burlington, United States,
P. Kajenski, Univ of Vermont, Burlington, United States,
D. Snyder, Univ of Vermont, Burlington, United States,



Document Type: Proceeding Paper

Part of: Nondestructive Testing of Concrete Elements and Structures

Abstract:

The use of an embedded multimode optical fiber to monitor curing and load-to-failure testing of a reinforced concrete beam has been investigated. The embedding process used to network the optical fibers into the concrete beam as it was formed is described. Measurement procedures used in monitoring the beam's curing are presented as are the experimental procedures and results of loading the beam to failure. High correlation of the embedded fiber fault locations and the curing of the beam and stress-induced failure points was observed.

Subject Headings: Concrete beams | Load tests | Fiber reinforced concrete | Curing | Structural failures | Probe instruments | Material tests

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