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Sub- and supercritical hydrothermal route for the synthesis of xonotlite nanofibers for application to green concrete materials

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierCentro de Fisica de Materiales [CFM]
dc.contributor.authorMUSUMECI, Valentina
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSANZ CAMACHO, Paula
hal.structure.identifierDepartment of Civil and Environmental Engineering [Berkeley] [CEE]
hal.structure.identifierLawrence Berkeley National Laboratory [Berkeley] [LBNL]
dc.contributor.authorXU, Ke
hal.structure.identifierDepartment of Civil and Environmental Engineering [Berkeley] [CEE]
dc.contributor.authorMONTEIRO, Paulo J.M.
hal.structure.identifierCentro de Fisica de Materiales [CFM]
hal.structure.identifierDonostia International Physics Center [DIPC]
dc.contributor.authorDOLADO, Jorge
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.issued2022
dc.identifier.issn0896-8446
dc.description.abstractEnDespite a wide range of applications, naturally occurring minerals suffer from some limitations for industrial use. Consequently, many research efforts have been conducted to develop a fast, optimized, and sustainable methodology to produce synthetic minerals. In the case of calcium silicate hydrates (CSH), the hydrothermal flow approach allows to mimic the environment at high temperature and pressure of the natural geological processes for the synthesis of xonotlite under sub- and supercritical conditions in only few seconds. The ultra-fast, flexible, and effective production of xonotlite particles reported in this work expands its use towards industrial requirements, especially for applications to cement-based materials. In this context, CSH nanominerals can be used to impart new functionality or to accelerate the hydration process of cement for developing green cement materials. This study sheds light on the acceleration effect of crystalline xonotlite seed, measured using isothermal calorimetry and synchrotron radiation based X-ray microtomography, as a means of lowering the cement content without compromising the performance of the paste.
dc.language.isoen
dc.publisherElsevier
dc.subject.enSynthetic minerals
dc.subject.enCalcium silicate hydrates
dc.subject.enHydrothermal flow synthesis
dc.subject.enSupercritical water
dc.subject.enCement-based materials
dc.subject.enSeeding effect
dc.title.enSub- and supercritical hydrothermal route for the synthesis of xonotlite nanofibers for application to green concrete materials
dc.typeArticle de revue
dc.identifier.doi10.1016/j.supflu.2022.105583
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Supercritical Fluids
bordeaux.page105583
bordeaux.volume184
bordeaux.peerReviewedoui
hal.identifierhal-03641336
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03641336v1
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