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dc.contributor.author
Araújo, Maria  
dc.contributor.author
Chatrabhuti, Sutima  
dc.contributor.author
Gurdebeke, Stijn  
dc.contributor.author
Alderete, Natalia Mariel  
dc.contributor.author
Van Tittelboom, Kim  
dc.contributor.author
Raquez, Jean Marie  
dc.contributor.author
Cnudde, Veerle  
dc.contributor.author
Van Vlierberghe, Sandra  
dc.contributor.author
de Belie, Nele  
dc.contributor.author
Gruyaert, Elke  
dc.date.available
2023-08-24T12:12:10Z  
dc.date.issued
2018-05  
dc.identifier.citation
Araújo, Maria; Chatrabhuti, Sutima; Gurdebeke, Stijn; Alderete, Natalia Mariel; Van Tittelboom, Kim; et al.; Poly(methyl methacrylate) capsules as an alternative to the ‘’proof-of-concept’’ glass capsules used in self-healing concrete; Elsevier; Cement & Concrete Composites; 89; 5-2018; 260-271  
dc.identifier.issn
0958-9465  
dc.identifier.uri
http://hdl.handle.net/11336/209185  
dc.description.abstract
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.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/  
dc.subject
CRACKS  
dc.subject
CYLINDRICAL CAPSULES  
dc.subject
POLY(METHYL METHACRYLATE)  
dc.subject
SELF-HEALING CONCRETE  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Poly(methyl methacrylate) capsules as an alternative to the ‘’proof-of-concept’’ glass capsules used in self-healing concrete  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-08-15T23:08:41Z  
dc.journal.volume
89  
dc.journal.pagination
260-271  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Araújo, Maria. University of Ghent; Bélgica  
dc.description.fil
Fil: Chatrabhuti, Sutima. Université de Mons; Bélgica  
dc.description.fil
Fil: Gurdebeke, Stijn. University of Ghent; Bélgica  
dc.description.fil
Fil: Alderete, Natalia Mariel. University of Ghent; Bélgica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina  
dc.description.fil
Fil: Van Tittelboom, Kim. University of Ghent; Bélgica  
dc.description.fil
Fil: Raquez, Jean Marie. Université de Mons; Bélgica  
dc.description.fil
Fil: Cnudde, Veerle. University of Ghent; Bélgica  
dc.description.fil
Fil: Van Vlierberghe, Sandra. University of Ghent; Bélgica  
dc.description.fil
Fil: de Belie, Nele. University of Ghent; Bélgica  
dc.description.fil
Fil: Gruyaert, Elke. Katholikie Universiteit Leuven; Bélgica  
dc.journal.title
Cement & Concrete Composites  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cemconcomp.2018.02.015  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0958946518300027