| 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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Alderete, Natalia
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2023Influencing factors to the capillary water uptake of (un)cracked cementitious materialscitations
- 2022Report of RILEM TC 281-CCC: outcomes of a round robin on the resistance to accelerated carbonation of Portland, Portland-fly ash and blast-furnace blended cementscitations
- 2022Report of RILEM TC 281-CCC: outcomes of a round robin on the resistance to accelerated carbonation of Portland, Portland-fly ash and blast-furnace blended cementscitations
- 2022Report of RILEM TC 281-CCCcitations
- 2022Relationship between sorptivity coefficients of concrete as calculated from the evolution of water uptake versus t0.5 or t0.25citations
- 2022Capillary imbibition in cementitious materials : effect of salts and exposure conditioncitations
- 2022Influence of 3D printed vascular networks in self-healing cementitious materials on water absorption studied via neutron imaging
- 2022Report of RILEM TC 267-TRM : improvement and robustness study of lime mortar strength test for assessing reactivity of SCMscitations
- 2022Report of RILEM TC 267—TRM: Improvement and robustness study of lime mortar strength test for assessing reactivity of SCMscitations
- 2021A correlation between sorptivity coefficients of concrete as calculated from relationships of water uptake with t0,5 or t0,25citations
- 2021Processed municipal solid waste incineration ashes as sustainable binder for concrete productscitations
- 2021Correction to: Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCCcitations
- 2020Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCCcitations
- 2020Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCCcitations
- 2020Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCCcitations
- 2020Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCCcitations
- 2020Understanding the carbonation of concrete with supplementary cementitious materialscitations
- 2018Lucas-Washburn vs Richards equation for the modelling of water absorption in cementitious materials
- 2018Poly(methyl methacrylate) capsules as an alternative to the ‘’proof-of-concept’’ glass capsules used in self-healing concrete
- 2018Poly(methyl methacrylate) capsules as an alternative to the ‘’proof-of-concept’’ glass capsules used in self-healing concretecitations
- 2018Isothermal water vapour permeability of concrete with different supplementary cementitious materials
- 2018Pore structure of mortars containing limestone powder and natural pozzolan assessed through mercury intrusion porosimetry and dynamic vapour sorption
Places of action
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article
Poly(methyl methacrylate) capsules as an alternative to the ‘’proof-of-concept’’ glass capsules used in self-healing concrete
Abstract
<p>Development of suitable capsules is essential to achieve self-healing by encapsulation. In the context of self-healing concrete, capsules that can be easily mixed into concrete and release the healing agent when cracking occurs are ideally required. The optimization of these properties would allow for a successful implementation at large scale in practical (concrete) applications. In the present work, the suitability of polymeric cylindrical capsules made of poly(methyl methacrylate) (PMMA) to carry healing agent in self-healing concrete has been evaluated. An innovative method to assess more easily the capsules survival during concrete mixing was developed. This method is based on the evaluation of the setting behavior of concrete containing capsules filled with setting accelerator. Capsules with a wall thickness of 0.7 mm were able to resist the concrete mixing process and to rupture at relatively small crack widths (116 μm) after applying a surface treatment to increase the adhesion between the capsules and the cementitious matrix. Next, the self-healing efficiency of the encapsulation materials (glass or PMMA) was evaluated on real-scale concrete beams. The results showed that cracked concrete beams with mixed-in capsules (glass or PMMA) filled with water-repellent agent showed higher resistance against chloride ingress compared to plain cracked concrete beams. PMMA capsules showed a lower self-healing efficiency (in relation to chloride ingress) compared to glass due to a less favorable distribution of the capsules in the concrete. However, concrete containing glass capsules is susceptible towards alkali-silica reaction. Although optimization of the PMMA capsules is still necessary to improve their distribution in concrete and achieve higher self-healing efficiency, the obtained results indicate that these capsules could be a promising solution towards self-healing concrete.</p>