| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Grammatikos, Sotirios
Norwegian University of Science and Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023Surface roughness of as-printed polymers:a comprehensive reviewcitations
- 2023Surface roughness of as-printed polymerscitations
- 2023Three-Dimensional Analysis of Porosity in As-Manufactured Glass Fiber/Vinyl Ester Filament Winded Composites Using X-Ray Micro-Computed Tomographycitations
- 2023Surface roughness of as-printed polymers: a comprehensive reviewcitations
- 2021Effect of stacking sequence on the performance of hybrid natural/synthetic fiber reinforced polymer composite laminates
- 2020Recovery of electronic wastes as fillers for electromagnetic shielding in building components: an LCA studycitations
- 2019Permeable nanomontmorillonite and fibre reinforced cementitious binderscitations
- 2018Pore-structure and microstructural investigation of organomodified/Inorganic nano-montmorillonite cementitious nanocompositescitations
- 2018Pore-structure and microstructural investigation of organomodified/Inorganic nano- montmorillonite cementitious nanocompositescitations
- 2018Impedance spectroscopy as a tool for moisture uptake monitoring in construction composites during servicecitations
Places of action
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article
Impedance spectroscopy as a tool for moisture uptake monitoring in construction composites during service
Abstract
This is a first study comparing dielectric spectroscopy and gravimetric measurements of moisture uptake in pultruded glass fibre reinforced polymers (FRPs). Specimens were subjected to sub-Tg hygrothermal aging for 224 days. Impedance spectra in the frequency range 0.1 Hz to 10 MHz were captured during exposure and compared with gravimetric measurements. Moisture concentration was found to increase the FRP’s dielectric permittivity monotonically and decrease bulk resistance. High quality dielectric data was obtained as moisture uptake is independent of inherent changes suggested by mass loss which compromise gravimetry. Dielectric measurements remained sensitive to moisture despite significant mass loss, which typically distorts the weight gain process complicating the commonly adopted gravimetric methodology. Real-time dielectric measurements were obtained from FRP specimens continuously immersed in water and without making use of any additional sensing elements. The novel approach adopted is of high commercial impact as moisture uptake control is recognized as a significant problem by industry.