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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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Gruyaert, E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Report of RILEM TC 281-CCC: insights into factors affecting the carbonation rate of concrete with SCMs revealed from data mining and machine learning approachescitations
- 2023Carbonation of concrete with SCMs: a data analysis by RILEM TC 281-CCC
- 2022Self-Healing Concrete Research in the European Projects SARCOS and SMARTINCScitations
- 2018Effect of Polyurethane Viscosity on Self-Healing Efficiency of Cementitious Materials Exposed to High Temperatures from Sun Radiationcitations
- 2018Effect of Polyurethane Viscosity on Self-Healing Efficiency of Cementitious Materials Exposed to High Temperatures from Sun Radiationcitations
- 2017Monitoring crack movement in polymer-based self-healing concrete through digital image correlation, acoustic emission analysis and SEM in-situ loadingcitations
- 2017Simulation-Aided Design of Tubular Polymeric Capsules for Self-Healing Concretecitations
- 2017Design and testing of tubular polymeric capsules for self-healing of concretecitations
- 2017Outcomes of the RILEM round robin on degree of reaction of slag and fly ash in blended cementscitations
- 2016Non-destructive testing techniques to evaluate the healing efficiency of self-healing concrete at lab-scale
- 2016Self-healing mortar with pH-sensitive superabsorbent polymers: Testing of the sealing efficiency by water flow testscitations
- 2013Design of polymeric capsules for autonomous healing of cracks in cementitious materials
- 2013ICSHM 2013: Proceedings of the 4th International Conference on Self-Healing Materials, Ghent, Belgium, 16-20 June 2013
- 2013Resistance of concrete with blast-furnace slag against chlorides, investigated by comparing chloride profiles after migration and diffusioncitations
- 2013Self-healing of thermal cracks in sandwich panels
- 2012Resistance of concrete against combined attack of chlorides and sulphates
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article
Simulation-Aided Design of Tubular Polymeric Capsules for Self-Healing Concrete
Abstract
Polymeric capsules can have an advantage over glass capsules used up to now as proof-of-concept carriers in self-healing concrete. They allow easier processing and afford the possibility to fine tune their mechanical properties. Out of the multiple requirements for capsules used in this context, the capability of rupturing when crossed by a crack in concrete of a typical size is one of the most relevant, as without it no healing agent is released into the crack. This study assessed the fitness of five types of polymeric capsules to fulfill this requirement by using a numerical model to screen the best performing ones and verifying their fitness with experimental methods. Capsules made of a specific type of poly(methyl methacrylate) (PMMA) were considered fit for the intended application, rupturing at average crack sizes of 69 and 128m, respectively for a wall thickness of ~0.3 and ~0.7 mm. Thicker walls were considered unfit, as they ruptured for crack sizes much higher than 100m. Other types of PMMA used and polylactic acid were equally unfit for the same reason. There was overall good fitting between model output and experimental results and an elongation at break of 1.5% is recommended regarding polymers for this application.