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dc.contributor.authorRibeiro De Souza, Liviaen
dc.contributor.authorAl-Tabbaa, Abiren
dc.date.accessioned2018-09-08T06:32:49Z
dc.date.available2018-09-08T06:32:49Z
dc.date.issued2018-09-30en
dc.identifier.issn0950-0618
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/279861
dc.description.abstractAutonomic self-healing in cement-based infrastructure materials has recently emerged as a promising strategy for extending the service life of concrete infrastructure. Amongst the various self-healing systems being developed, the use of microcapsules has received significant attention partly because of its ease implementation. Up to date, microcapsules for self-healing applications have been mainly manufactured using bulk emulsifications polymerisation techniques. However this methodology raises concerns regarding shell dimensions and interfacial bonding. This study proposes for the first time the fabrication of microcapsules with tailored characteristics for mechanically triggered self-healing action in cement-based composites. For this, a microfluidic device was used to produce a double emulsion template for the formation of microcapsules, containing both aqueous and organic liquid core. In addition, a novel method has been proposed to functionalize the microcapsules' surface with hydrophilic groups in order to increase the interfacial bond with the cementitious host matrix. The core retention was studied using EDX and TGA, and their mechanical triggering was investigated via SEM of the microcapsules embedded in the cement paste. The results demonstrated the capability of microfluidics to produce microcapsules with liquid organic core, thin shell, hydrophilic surface and appropriate fracture strength for use in mechanically triggered self-healing of cementitious materials.
dc.description.sponsorshipCAPES (Brazilian funding) and EPSRC
dc.publisherElsevier
dc.rightsAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleMicrofluidic fabrication of microcapsules tailored for self-healing in cementitious materialsen
dc.typeArticle
prism.endingPage722
prism.publicationDate2018en
prism.publicationNameConstruction and Building Materialsen
prism.startingPage713
prism.volume184en
dc.identifier.doi10.17863/CAM.27229
dcterms.dateAccepted2018-07-03en
rioxxterms.versionofrecord10.1016/j.conbuildmat.2018.07.005en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-09-30en
dc.contributor.orcidRibeiro De Souza, Livia [0000-0002-0241-2880]
dc.identifier.eissn1879-0526
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (via Cardiff University) (EP/P02081X/1)
pubs.funder-project-idCARDIFF UNIVERSITY (FB EPSRC) (EP/K026631/1)


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's licence is described as Attribution 4.0 International (CC BY 4.0)