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Listar por autor "García-Aranda, Miguel Ángel"
Mostrando ítems 1-15 de 15
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Active Sulpho-belite cements. Hydration mechanisms and mechanical properties
Álvarez-Pinazo, Gema (Servicio de Publicaciones y Divulgación Científica, 2015)The threat of climate change is considered one of the major environmental challenges for our society, where carbon dioxide (CO2) is one of the main Greenhouse gases (GHGs). Every ton of ordinary Portland cement (OPC) ... -
Advanced synchrotron studies of ye'elimite-based cement pastes
García-Aranda, Miguel Ángel; Cuesta, Ana; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel (2018-07-18)Synchrotron characterization techniques [1] are being used to study Portland-based cements and recently also CSA and related cements. A key property of these techniques is that they do not require sample preparation, so ... -
Clinkering of calcium sulfoaluminate clinkers: polymorphism of ye'elimite
Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel; Santacruz-Cruz, Maria Isabel; Cuesta, Ana; Zea-Garcia, Jesus D.; [et al.] (2018)The manufacture of CSA cements is more environmentally friendly than that of OPC as it releases less CO2. This reduction depends on CSA composition and is due to three factors: i) less emissions from decarbonation in the ... -
Cristaloquímica y Conductividad de ion óxido en Oxo-cuspidinas
Martín-Sedeño, María del Carmen (Universidad de Málaga, Servicio de Publicaciones, 2006)El trabajo de investigación se ha centrado en el estudio (preparación y caracterización estructural y eléctrica) de las oxo-cuspidinas con fórmula general A4(M2O71)O2 (A=La, Nd, Sm, Gd; M=Ga, Al) como posibles materiales ... -
Difracción de rayos-x (DRX) y cementos: desde la investigación hasta el control de calidad
Garcia-Mate, Marta; Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel (2019-06-20)Los materiales de construcción son componentes complejos de gran interés comercial. Por ello, el conocimiento cuantitativo de su mineralogía a través de la difracción de rayos X (DRX) es de crucial importancia para optimizar ... -
Early hydration study of standard and doped Alite-Belite-Ye’elimite (ABY) cements through Synchrotron Radiation
Zea-Garcia, Jesus D.; Cuesta, Ana; Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel; Vallcorba, O.; [et al.] (2018-07-09)The manufacturing of ye'elimite-rich cements releases from 15 to 37%, depending on their composition, less CO2 to the atmosphere than ordinary Portland cement (OPC). BYF cements containing belite, ye’elimite and ferrite ... -
Hydration studies of ye’elimite by using Ptychographic X-ray nano-tomography
Cuesta, Ana; Da-Silva, Julio C.; Diaz, Ana; Holler, Mirko; De-la-Torre, Angeles G.; [et al.] (2015-06-26)CSA (Calcium SulfoAluminate) cements may have variable compositions but all of them contain ye’elimite(Ca4Al6O12SO4). The manufacture of CSA cements is more environmentally friendly than that of ordinary Portland cements ... -
In-situ hydration studies of ye’elemite at early ages for understanding eco-cement performances'
Cuesta, Ana; Álvarez-Pinazo, Gema; Peral, Inma; García-Aranda, Miguel Ángel; De-la-Torre, Angeles G. (2013-09-12) -
In-situ hydration study of sulfobelite eco-cements
Álvarez-Pinazo, Gema; Cuesta, Ana; García-Maté, Marta; Santacruz, Isabel; Ramirez-Losilla, Enrique; [et al.] (2013-09-12) -
Multifunctional metal phosphonate frameworks for proton conductivity and photocatalysis
Bazaga-García, Antonia Montserrat (Servicio de Publicaciones y Divulgación Científica, 2015)A lo largo de este trabajo de investigación han sido estudiadas las propiedades de conducción protónica, fotocatálisis y fotoluminiscencia de fosfonatos metálicos multifuncionales, preparados por incorporación de iones ... -
Powder diffraction at ALBA synchrotron
García-Aranda, Miguel Ángel (2017-03-17)This talk is devoted to explain the uses of powder diffraction at MSPD (material science and powder diffraction) of ALBA synchrotron light source. General characteristics of the beamline are: Station 1 - High Pressure ... -
Preparation and hydration of model ecocement phases. Characterization by diffraction and cognate methods
Cuesta-García, Ana María (Servicio de Publicaciones y Divulgación Científica, 2015)La producción de cementos de sulfoaluminato de calcio (CSA, del inglés Calcium SulfoAluminate) es más respetuosa para el medio ambiente que la de los cementos Portland ordinarios (OPC, del inglés Ordinary Portland Cement) ... -
Processing and characterisation of calcium sulphoaluminate (CSA) eco-cements with tailored performances
García-Maté, Marta (Universidad de Málaga, Servicio de Publicaciones y Divulgación Científica, 2014)Climate change mitigation usually involves the reduction of greenhouse gases emissions, such as carbon dioxide (CO2). Every tonne of Ordinary Portland Cement (OPC) produces about one tonne of CO2. Consequently, OPC accounts ... -
Synchrotron Radiation and ALBA Facility
García-Aranda, Miguel Ángel (2017-03-17)ALBA synchrotron light source (www.cells.es) is the largest Spanish research infrastructure that started full operation of its first 7 beamlines on February 2013. I will divide the talk in three parts: i) the general ... -
Synchrotron x-ray pair distribution function: A tool to characterize cement gels
Cuesta, Ana; Zea-Garcia, Jesus D.; Londono-Zuluaga, Diana; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel; [et al.] (2018-07-06)Cement matrices contain large amounts of crystalline phases jointly with amorphous and/or nanocrystalline phases. Consequently, their analyses are very challenging. Synchrotron powder diffraction in combination with the ...