| 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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Amziane, Sofiane
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Utilization of air granulated basic oxygen furnace slag as a binder in belite calcium sulfoaluminate cement: A sustainable alternativecitations
- 2023Carbon fibers' percolation in smart cementitious materials considering sand characteristicscitations
- 2023RILEM TC 266-MRP: round-robin rheological tests on high performance mortar and concrete with adapted rheology—rheometers, mixtures and procedurescitations
- 2023The Influence of Biochar on the Flow Properties, Early Hydration, and Strength Evolution of Pastecitations
- 2023RILEM TC 266-MRP - Round-Robin Rheological Tests on High Performance Mortar and Concrete with Adapted Rheology: Evaluating Structural Build-up at Rest of Mortar and Concrete
- 2023Development of a local bond shear stress-slip model of RC beams externally strengthened with FRP materialscitations
- 2023RILEM TC 266-MRP: Round-Robin rheological tests on high performance mortar and concrete with adapted rheology—evaluating structural build-up at rest of mortar and concretecitations
- 2023Analysis of Mechanical and Thermal Performance and Environmental Impact of Flax-Fiber-Reinforced Gypsum Boardscitations
- 2022Assessment of manufacturing process efficiency in the dispersion of carbon fibers in smart concrete by measuring ac impedancecitations
- 2022About the self-sensing behavior of smart concrete and its interaction with the carbon fiber percolation status, sand connectivity status and grain size distributioncitations
- 2022A Review on the Incorporation of Diatomaceous Earth as a Geopolymer-Based Concrete Building Resourcecitations
- 2022Mechanical performance of 3-D printed concrete containing fly ash, metakaolin and nanoclaycitations
- 2021experimental and nonlinear finite element analysis of shear behaviour of reinforced concrete beamscitations
- 2021Effect of metakaolin and natural fibres on three-dimensional printing mortarcitations
- 2020Study of modifications on the chemical and mechanical compatibility between cement matrix and oil palmfibrescitations
- 2020Carbon-fibred mortar: Effect of sand content and grain size distribution on electrical impedance
- 2020About electrical resistivity variation during drying and improvement of the sensing behavior of carbon fiber-reinforced smart concretecitations
- 2018Evolution of hemp concrete properties exposed to different environments
- 2018Evolution of hemp concrete properties exposed to different environments
- 2018Evolution of hemp concrete properties exposed to different types of environments
- 2017A multi-scale analysis of hemp-based insulation materials
- 2017A multi-scale analysis of hemp-based insulation materials
- 2017Behavior of pre-cracked deep beams with composite materials repairs
- 2016Variability of the mechanical properties of hemp concretecitations
- 2016Influence of accelerated aging on the properties of hemp concretescitations
- 2013Influence of wetting-drying cycles on the mechanical, physico-chemical, and microstructural properties of hemp concretes
- 2012Cement-based mixes: Shearing properties and pore pressure
- 2008Processing the vane shear flow data from Couette analogy
Places of action
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conferencepaper
Carbon-fibred mortar: Effect of sand content and grain size distribution on electrical impedance
Abstract
Self-obtained by including electrically conductive fibers in cement-based materials. These fibers may allow to reduce electrical resistivity and develop a piezoresitive behaviour. Smart Concrete could therefore be simultaneously both a structural and a sensing material, which eliminates the need for external instrumentation in Structural Health Monitoring. By increasing the fiber volume fraction within the cement matrix, the electrical resistivity (or impedance) of the material is reduced once percolation threshold is reached. Above this percolation threshold, the fiber content is high enough to allow conductive particles to be in contact or very close to each other, thus creating a continuous conductive network within the insulative matrix. in case of fibred mortar: a high sand content may prevent the network of conductive fibers from percolating. This phenomenon is referred in order to allowi fibers to maintain their efficiency in reducing the electrical resistivity of composites. However, little attention has been given to the impact of the size of sand grains on the electrical percolation. This work intends to study the effect of the grain size distribution and volume fraction of sand within mortars containing various fiber volume fractions. The results confirm. t phenomena: when the volume fraction of sand is close to its maximum packing density, the addition of fibres was not as effective in reducing the electrical impedance of mortar samples. In addition, grain size distribution proved an influence on impedance of mortar: fine sand showed higher impedance compared to standard sand, especially in case of high sand volume fraction. This could be related to the smaller maximum packing density in case of fine sand, where distance between particles would be in average reduced. This effect, combined with the higher number of insulative particles, could probably disrupt the continuity of the conductive network of fibres within mortar.