Abstract When using distributed optical fiber sensors (DOFS) on reinforced concrete structures, a compromise must be achieved between the protection requirements and robustness of the sensor
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Recently, fiber optic based monitoring systems have been successfully developed and employed in many fields such as aeronautics, astronautics, defense, manufacturing and the power
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With this in mind the authors have carried out an experiment where polyimide-coated DOFS were installed on two concrete beams, both embedded in the rebar elements and also bonded to the
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The ability to measure strains quasi-continuously with high spatial resolution makes distributed fiber optic sensing a promising technology for structural health
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This study aims to utilize singlemode fiber optic as an embedded beam failure sensor. Concrete failure detection systems are designed to read signals from fiber optics and define beam
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Therefore, the purpose of this effort is to bridge the gap between civil engineering and sensor engineering communities through an overview on the
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Optical fibre Raman technology offers a unique opportunity for developing a novel chemical sensor system capable of monitoring the service
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This study helps to advance the application of the smart DFOS for structural health monitoring and maintenance of concrete infrastructures.
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Optical fiber sensors can be used advantageously for monitoring dams and levees and to detect and localize damage in them. This technology is relatively new, but in the last 20 years
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Fiber optic sensors (FOS) have been widely explored in recent years for concrete durability monitoring due to their advantages of high sensitivity,
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This paper presents a review of the current state-of-the-art of embedded fiber optic sensors used to assess concrete information of a wide range of aspects, comprising: existing
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Monitoring of cracks and crack growth rates is a crucial aspect of structural health monitoring for concrete infrastructure, and multiple manual and automatic monitoring techniques
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The utilization of distributed fiber optic sensing (DFOS) allows the assessment of strain and temperature distributions continuously along the
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To address these challenges, this work introduces a fluorescent-probe-based fiber optic sensor for monitoring chloride levels in concrete structures. Quinine sulfate was chosen as the fluorescent
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The basic setup in the lab for the fluorescence-based sensor consists of a laser source, a Y-type optical fiber, an optical fiber spectrometer, and a detector containing fluorescent material, as shown in
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Fiber optic sensors (FOSs) are ideally suited for monitoring strain in concrete structures due to their small size, low cost, ability to be embedded internally, and multiplexing capabilities. Several types of
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Distributed fibre optic sensing (DFOS) is a unique technology that enables the measurement of selected physical quantities continuously along its entire length, making direct damage (and crack) detection
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The disc type sensor has a life span of approximately 1 month and, hence, it is not suitable for embedding in concrete for long-term monitoring of pH
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Abstract and Figures This study investigates the feasibility of distributed fiber optic sensor for corrosion monitoring of steel bars embedded in
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In this paper, new solutions to the problem of making measurements, of carbonation and chloride ingress, in particular, in concrete structures are considered. The approach has focused on
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New reinforced concrete constructions would also benefit from in situ structural monitors which could detect a decrease in performance or imminent failure, thereby optimizing lifetimes without
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The strain transfer correction model is proposed for the surface-adhesive tubular fiber sensor on Ultra-High Performance Concrete (UHPC). The adhesive layer she
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The study employed modelling and experiments with FOS to measure deformations in various concrete samples. FOS, which are thin fibres with an optical cable inside, was used in the
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We describe the development of a portable fiber-optic refractive-index sensor for detecting the air-bubble content in fresh concrete. The sensor uses a low-power visible laser diode as the light source.
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This literature review examines the application of Fibre Optic Sensors (FOS) in the structural health monitoring of concrete buildings, an increasing issue in contemporary construction
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The use of fiber optic sensors for detecting strain in concrete structures has been demonstrated by a number of researchers using a variety of sensing schemes. Fiber optic sensors have been attached
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