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dc.contributor.advisorSantacruz-Cruz, Maria Isabel 
dc.contributor.advisorGomez-de-la-Torre, Maria de los Angeles 
dc.contributor.authorZea García, Jesús David
dc.contributor.otherQuímica Inorgánica, Cristalografía y Mineralografíaen_US
dc.date.accessioned2020-09-14T13:07:17Z
dc.date.available2020-09-14T13:07:17Z
dc.date.created2020-04-28
dc.date.issued2020-09-11
dc.identifier.urihttps://hdl.handle.net/10630/19764
dc.descriptionThe results obtained from this second part of the research work have allowed fulfilling the specific objectives of synthesizing, “scaling-up” and hydration understanding for both ABY and dABY cements, which mortars show similar performances than PC but ~17% less CO2 emissions. In addition, the goal of enhancing the performances of these types of materials by doping with boron has been achieved as the ratio CO2/MPa has decreased from 0.018 to 0.011 at 28 days when compared to PC (w/c=0.50).en_US
dc.description.abstractAn eco-friendly industrial production is essential to protect our environment. The synthesis process of PC generates greenhouse gas emissions. Because of that, the cement industry is under increasing scrutiny to reduce CO2 emissions, including the energy used in the production of PC. This PhD thesis is focused in the production and characterisation of cements with alite, belite and ye’elimite phases. It has been gathered in two blocks: on the one hand, a deep characterisation of the hydration of the main phases of this type of cements, alite and ye’elimite pure phases, has been performed to understand them. The corresponding hydration products (which contain nanocrystalline and crystalline phases) have been characterized through PDF methodology. On the other hand, the synthesis, hydration understanding, processing and the corresponding characterisation of ABY cements and mortars have been performed. Here, both standard (ABY, composed by beta-belite) and doped (dABY, with alpha-belite) cements/mortars have been prepared and characterised. Summarising, this first part of the PhD has enabled us to establish a multi-r range methodology for the analysis by PDF of mixtures of crystalline/nanocrystalline/amorphous components. Moreover, C-S-H gel has been characterised and described as nanocrystalline defective tobermorite, monolayers of portlandite and water pore, independently of the polymorphism of alite, particle size, water to solid mass ratio or temperature. Finally, aluminium hydroxide gel obtained from the hydration of ye’elimite has also been described. The type and amount of the sulphate source seems not to have any influence on the nanocrystalline nature of this phase.en_US
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO): Proyectos BIA2014-57658-C2-1-R, BIA2014-57658-C2-2-R y BIA2017-82391-R estos dos últimos cofinanciados por los fondos FEDER. Contrato I+D+i por Armigon S.L. (8.06/5.41.4958). Financiación adicional asociada al contrato Ramón y Cajal I3 (IEDI-2016-0079).en_US
dc.language.isoengen_US
dc.publisherUMA Editorialen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectClinkers de cementoen_US
dc.subjectCemento - Investigaciónen_US
dc.subject.otherPair Distribution Function (PDF)en_US
dc.subject.otherAlite-belite-ye'elimite ecocementsen_US
dc.subject.otherClinkeringen_US
dc.subject.otherProcessingen_US
dc.subject.otherX-ray diffractionen_US
dc.subject.otherCompressive strengthen_US
dc.subject.otherCementos ecológicosen_US
dc.titleClinkering, processing and characterisation of Alite-Belite-Ye’elimite eco-cements: from basic to applied scienceen_US
dc.typeinfo:eu-repo/semantics/doctoralThesisen_US
dc.centroFacultad de Cienciasen_US
dc.rights.ccAttribution-NonCommercial-NoDerivatives 4.0 Internacional*


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