Mostrar el registro sencillo del ítem

dc.contributor.authorShirani, Shiva
dc.contributor.authorCuesta-García, Ana María
dc.contributor.authorMorales-Cantero, Alejandro
dc.contributor.authorSantacruz-Cruz, María Isabel 
dc.contributor.authorDíaz, Ana
dc.contributor.authorTrtik, Pavel
dc.contributor.authorHoller, Mirko
dc.contributor.authorRack, Alexander
dc.contributor.authorLukic, Bratislav
dc.contributor.authorBrun, Emmanuel
dc.contributor.authorRuiz Salcedo, Inés
dc.contributor.authorGarcía-Aranda, Miguel Ángel 
dc.date.accessioned2023-05-12T08:59:56Z
dc.date.available2023-05-12T08:59:56Z
dc.date.issued2023-05-08
dc.identifier.citationShirani, Shiva & Cuesta, Ana & Morales, Alejandro & Santacruz, Isabel & Diaz, Ana & Trtik, Pavel & Holler, Mirko & Rack, Alexander & Lukić, Bratislav & Brun, Emmanuel & Salcedo, Inés & Aranda, Miguel. (2023). 4D nanoimaging of early age cement hydration. Nature Communications. 14. 10.1038/s41467-023-38380-1es_ES
dc.identifier.urihttps://hdl.handle.net/10630/26546
dc.description.abstractDespite a century of research, our understanding of cement dissolution and precipitation processes at early ages is very limited. This is due to the lack of methods that can image these processes with enough spatial resolution, contrast and field of view. Here, we adapt near-field ptychographic nanotomography to in situ visualise the hydration of commercial Portland cement in a record-thick capillary. At 19 h, porous C-S-H gel shell, thickness of 500 nm, covers every alite grain enclosing a water gap. The spatial dissolution rate of small alite grains in the acceleration period, ∼100 nm/h, is approximately four times faster than that of large alite grains in the deceleration stage, ∼25 nm/h. Etch-pit development has also been mapped out. This work is complemented by laboratory and synchrotron microtomographies, allowing to measure the particle size distributionswith time. 4D nanoimagingwill allow mechanistically study dissolution-precipitation processes including the roles of accelerators and superplasticizers.es_ES
dc.description.sponsorshipFinancial support from PID2019-104378RJ-I00 research grant, which is co-funded by FEDER, is gratefully acknowledged. ToScA (United Kingdom) is gratefully acknowledged for awarding Jim Elliott Award to Shiva Shirani, I.R.S. is thankful for funding from PTA2019-017513–I.es_ES
dc.language.isoenges_ES
dc.publisherSpringer Naturees_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectCemento Portlandes_ES
dc.subjectSistemas de imágeneses_ES
dc.subject.otherNanotomographyes_ES
dc.subject.otherMicrotomographyes_ES
dc.subject.otherPtychographyes_ES
dc.subject.otherImaginges_ES
dc.subject.otherPortland cementes_ES
dc.subject.otherMachine Learninges_ES
dc.subject.otherIn situ analysises_ES
dc.title4D nanoimaging of early age cement hydration.es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroFacultad de Cienciases_ES
dc.identifier.doihttps://doi.org/10.1038/s41467-023-38380-1
dc.rights.ccAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


Ficheros en el ítem

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem

Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Excepto si se señala otra cosa, la licencia del ítem se describe como Attribution-NonCommercial-NoDerivatives 4.0 Internacional