| 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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Snoeck, D.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2019Comparison of different techniques to study the nanostructure and the microstructure of cementitious materials with and without superabsorbent polymers
- 2019Comparison of different techniques to study the nanostructure and the microstructure of cementitious materials with and without superabsorbent polymerscitations
- 2019Numerical investigation of crack self-sealing in cement-based composites with superabsorbent polymerscitations
- 2018Report of TC 238-SCM: hydration stoppage methods for phase assemblage studies of blended cements—results of a round robin testcitations
- 2018Modeling water absorption in cement-based composites with SAP additionscitations
- 2018External treatments for the preventive repair of existing constructions: A reviewcitations
- 2017The water kinetics of superabsorbent polymers during cement hydration and internal curing visualized and studied by NMR
- 2017The water kinetics of superabsorbent polymers during cement hydration and internal curing visualized and studied by NMRcitations
- 2016X-ray computed microtomography to study autogenous healing of cementitious materials promoted by superabsorbent polymerscitations
- 2016Self-healing mortar with pH-sensitive superabsorbent polymers: Testing of the sealing efficiency by water flow testscitations
- 2015The influence of superabsorbent polymers on the autogenous shrinkage properties of cement pastes with supplementary cementitious materialscitations
- 2015The influence of superabsorbent polymers on the autogenous shrinkage properties of cement pastes with supplementary cementitious materialscitations
- 2013Recovery against mechanical actionscitations
- 2013Experimental techniques used to verify healingcitations
- 2013Microfibres and hydrogels to promote autogenous healing in cementitious materials
Places of action
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article
Numerical investigation of crack self-sealing in cement-based composites with superabsorbent polymers
Abstract
Recently the concept of crack self-sealing has been investigated as a method to prevent degradation and/or loss of functionality of cracked concrete elements. To obtain self-sealing effect in the crack, water swelling admixtures such as superabsorbent polymers (SAP) are added into the cementitious mix. In order to design such self-sealing systems in an efficient way, a three-dimensional mesoscale numerical model is proposed to simulate capillary absorption of water in sound and cracked cement-based materials containing SAP. The numerical results yield the moisture content distribution in cracked and sound domain, as well as the absorption and swelling of SAP embedded in the matrix and in the crack. The performance of the model was validated by using experimental data from the literature, as well as experimentally-informed input parameters. The validated model was then used to investigate the role of SAP properties and dosage in cementitious mixtures, on the water penetration into the material from cracks. Furthermore different crack widths were considered in the simulations. The model shows good agreement with experimental results. From the numerical investigation guidelines are suggested for the design of the studied composites.