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Self-healing efficiency of Ultra High-Performance Fiber-Reinforced Concrete through permeability to chlorides

dc.contributor.authorDoostkami, Hesam
dc.contributor.authorRoig-Flores, Marta
dc.contributor.authorSERNA, PEDRO
dc.date.accessioned2022-01-27T08:59:11Z
dc.date.available2022-01-27T08:59:11Z
dc.date.issued2021-12-06
dc.identifier.citationH. Doostkami, M. Roig-Flores, P. Serna. Self-healing efficiency of Ultra High-Performance Fiber-Reinforced Concrete through permeability to chlorides. Constr. Build. Mater., 310 (2021), pp. 125168, 10.1016/j.conbuildmat.2021.125168ca_CA
dc.identifier.issn0950-0618
dc.identifier.urihttp://hdl.handle.net/10234/196528
dc.description.abstractThis study presents a novel methodology to evaluate the self-healing capability of Ultra High-Performance Fiber-Reinforced Concrete (UHPFRC) designed to compare conventional concrete types. The procedure used combines loading reinforced concrete elements until a fixed strain level to have a comparable total crack opening. Afterwards, water penetration to chlorides is used as an indicator of permeability. This work compares autogenous healing efficiency of a conventional concrete, a high-performance concrete, and two types of UHPFRCs with and without 0.8% of a crystalline admixture (CA) by the binder weight. The results show that all UHPFRC specimens exhibited excellent autogenous healing, higher than conventional concretes for an equivalent total crack. The self-healing results depended greatly on the crack size and the fiber content. Additionally, UHPFRCs with CA obtained the lowest water permeability after promoting self-healing for one month in water immersion and presented almost complete healing against chloride penetration.ca_CA
dc.format.extent13 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherElsevierca_CA
dc.relation.isPartOfConstruction and Building Materials, 2021, vol. 310ca_CA
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/ca_CA
dc.subjectultra-high-performance fiber reinforced concreteca_CA
dc.subjectself-healingca_CA
dc.subjectautogenous healingca_CA
dc.subjectcrystalline admixtureca_CA
dc.subjectwater penetrationca_CA
dc.subjectchloridesca_CA
dc.titleSelf-healing efficiency of Ultra High-Performance Fiber-Reinforced Concrete through permeability to chloridesca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttps://doi.org/10.1016/j.conbuildmat.2021.125168
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/760824/EU/Rethinking coastal defence and Green-Energy Service infrastructures through enHancEd-durAbiLIty high-performance fiber reinforced cement-based materials./
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttps://www.sciencedirect.com/science/article/pii/S0950061821029123ca_CA
dc.description.sponsorshipThe activity described in this paper has been performed in the framework of the project “Rethinking coastal defence and Green-energy Service infrastructures through enHancEd-durAbiLity high-performance cement-based materials-ReSHEALience”, funded by the European Union Horizon 2020 research and innovation programme under GA No 760824. The authors would also like to thank Sika and Penetron for providing materials for the tests and E.J. Mezquida-Alcaraz for the characterization of UHPFRC mixes with Inverse Analysis.
dc.contributor.funderEuropean Commission
dc.type.versioninfo:eu-repo/semantics/publishedVersionca_CA


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