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    Listar por autor "García-Aranda, Miguel Ángel"

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    Mostrando ítems 1-20 de 141

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      • 2D Corrugated Magnesium Carboxyphosphonate Materials: Topotactic Transformations and Interlayer “Decoration” with Ammonia 

        Demadis, Konstantinos D.; Famelis, Nikos; Cabeza-Díaz, AurelioAutoridad Universidad de Málaga; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga; Pérez-Colodrero, Rosario MercedesAutoridad Universidad de Málaga; Infantes-Molina, AntoniaAutoridad Universidad de Málaga[et al.] (American Chemical Society, 2012-06-29)
        In this paper we report the synthesis and structural characterization of the 2D layered coordination polymer Mg(BPMGLY)(H2O)2 (BPMGLY = bis-phosphonomethylglycine, (HO3PCH2)2N(H)COO2−). The Mg ion is found in a slightly ...
      • 4D Early Age Cement Hydration Analysis by Ptychographic X-ray Computed Tomography and Machine Learning Segmentation 

        Shirani, Shiva; Cuesta-Garcia, Ana Maria; Diaz, Ana; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga; Trtik, Pavel; Holler, Mirko[et al.] (2022-06)
        Cement manufacturing is responsible for ~7% of the anthropogenic CO2 emissions and hence, decreasing the CO2 footprint, in a sustainable, safe and cost-effective way, is a top priority. To fully understand the binder main ...
      • 4D nanoimaging of early age cement hydration. 

        Shirani, Shiva; Cuesta-Garcia, Ana Maria; Morales-Cantero, Alejandro; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga; Diaz, Ana; Trtik, Pavel; Holler, Mirko; Rack, Alexander; Lukic, Bratislav; Brun, Emmanuel; Ruiz Salcedo, Inés; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (Springer Nature, 2023-05-08)
        Despite 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 ...
      • Accuracy in Cement Hydration Investigations: Combined X-ray Microtomography and Powder Diffraction Analyses 

        Salcedo, Inés R.; Cuesta-Garcia, Ana Maria; Shirani, Shiva; León-Reina, Laura; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga (MDPI, 2021-11-17)
        Cement hydration is a very complex set of processes. The evolution of the crystalline phases during hydration can be accurately followed by X-ray powder diffraction data evaluated by the Rietveld method. However, accurate ...
      • Accuracy in cement hydration investigations: Combined X-ray microtomography and powder diffraction analyses 

        Ruiz Salcedo, Inés; Cuesta-Garcia, Ana Maria; Shirani, Shiva; León-Reina, Laura; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga (2022-06)
        Cements are multi-phase materials that can be well understood using a multi-technique approach. Furthermore, the hydration of cement pastes is a very complex set of processes. In this work, we focus on the accuracy of the ...
      • Accuracy in Rietveld quantitative phase analysis: a comparative study of strictly monochromatic Mo and Cu radiations 

        León-Reina, Laura; García-Maté, Marta; Álvarez-Pinazo, Gema; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga; Vallcorba, Oriol; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (Willey online Library, 2016)
        This study reports 78 Rietveld quantitative phase analyses using Cu K 1, Mo K 1 and synchrotron radiations. Synchrotron powder diffraction has been used to validate the most challenging analyses. From the results for ...
      • Activation of LC3 binders by C-S-H nucleation seeding with a new tailored admixture for low-carbon cements. 

        Cuesta-García, Ana María; Morales-Cantero, Alejandro; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga; Manzanec, Oliver; Dalla-Libera, Alessandro; Dhers, Sebastien; Schwesig, Peter; Borralleras, Pere; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (2023)
        The use of supplementary cementitious materials is currently the most favorable strategy for reducing CO2 emissions in cements. Limestone Calcined Clay Cements, LC3, are a type of cement that allows the reduction of CO2 ...
      • 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 ÁngelAutoridad Universidad de Málaga; Cuesta-Garcia, Ana Maria; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga (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 ...
      • ALBA Synchrotron Light Source 

        García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga (2015-03-23)
        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 ...
      • Alite hydration mechanism in presence of ye’elimite related to BAY cements 

        Londono-Zuluaga, Diana; Tobón, Jorge Iván; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga (2019-10-08)
        One alternative to decrease CO2 emissions from ordinary Portland Cement (OPC) production consists on the development of a new kind of eco-cements composed by less calcite demanding phases. That is the case of ...
      • Alite-belite-ye'elimite cements: Effect of dopants on the clinker phase composition and properties 

        Zea-Garcia, Jesus D.; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga (2018-10-30)
        Clinkers with alite-belite-ye'elimite (ABY) are considered as eco-friendly cements. Clinkering (2 Kg) of two types of ABY clinkers was optimized: standard-ABY, with CaF2 and ZnO as dopants (32.6 wt% alite, 30.4 wt% β-C2S ...
      • Aluminum Hydroxide Gel Characterization within a Calcium Aluminate Cement Paste by Combined Pair Distribution Function and Rietveld Analyses 

        Cuesta-Garcia, Ana Maria; Ichikawa, Rodrigo U.; Londono-Zuluaga, Diana; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga; Turrillas, Xavier; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (Elsevier, 2017-06)
        There are many commercially important multiphase materials which contain amorphous phases, such as cement pastes, porcelains, glass-ceramics or pharmaceutical compounds. However, the analysis of amorphous phase(s) within ...
      • Aluminum-rich belite sulfoaluminate cements: clinkering and early age hydration 

        Martín-Sedeño, M. Carmen; Cuberos, Antonio J M; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; Álvarez-Pinazo, Gema; Ordónez, Luis M; Gateshki, Milen; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (Elsevier, 2009)
        Belite sulfoaluminate (BSA) cements have been proposed as environmentally friendly building materials, as their production may release up to 35% less CO2 into the atmosphere when compared to ordinary Portland cements. ...
      • Amorphous determination in calcium sulfoaluminate materials by external and internal methods 

        García-Maté, Marta; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga; Cuesta-Garcia, Ana Maria; León-Reina, Laura; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga; Baco, Isabelle; Morin, Vincent; Walenta, Günther; Gartner, Ellis; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga[et al.] (ICE Publishing, 2014)
        External standard methodology has been successfully applied to quantify the known amounts of amorphous component that are increasingly added to cement-related materials. The consistency and accuracy of the methodology were ...
      • ANALYSIS OF BUILDING MATERIALS BY SYNCHROTRON X-RAY IMAGING 

        Shirani, Shiva; Cuesta-Garcia, Ana Maria; Morales-Cantero, Alejandro; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (-, 2021-01)
        Building materials have complex hierarchical microstructures. The largest components are coarse aggregates with dimensions larger than a few centimetres and the smallest ones are the calcium silicate hydrate (C-S-H) gel ...
      • Applications of synchrotron x-ray powder diffraction in hydrated cements: high-resolution and high-pressure studies 

        Cuesta-Garcia, Ana Maria; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; Santacruz-Cruz, María IsabelAutoridad Universidad de Málaga; Popescu, Catalin; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga (2016-07-12)
        The main aim of this study is to apply synchrotron radiation techniques for the study of hydrated cement pastes. In particular, the tetracalcium aluminoferrite phase, C4AF in cement nomenclature, is the major iron-containing ...
      • Belite cements and their activation 

        Cuesta-Garcia, Ana Maria; Ayuela, Andrés; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga (Elsevier, 2020-11)
        Belite cements, BCs, containing mainly belite, alite and calcium aluminates, are currently used as low heat cements. These binders produce high amounts of C–S–H gel and have very good durability properties which are reviewed. ...
      • Belite clinkers with increasing aluminium content: effect of calcium aluminates on calcium silicate hydration 

        Redondo-Soto, Cinthya; Gastaldi, Daniela; Irico, Sara; Canonico, Fulvio; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga (Elsevier, 2022)
        Belite cements (BCs) could have advantages over Portland cements concerning durability, low heat development and the use of less demanding raw materials. The activation of BCs by sulfur addition at the clinkering stage and ...
      • Belite hydration at high temperature and pressure by in situ synchrotron powder diffraction 

        Morales-Cantero, Alejandro; Gómez-de-la-Torre, María de los ÁngelesAutoridad Universidad de Málaga; Cuesta-Garcia, Ana Maria; Fraga-López, Edmundo; Shirani, Shiva; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (2020-10-16)
        Portland cements are currently used as Oil‐Well‐Cements for the sheath between the metal casing and the borehole. At high pressures and temperatures, the resulting C-S-H gel(s) is partly unstable and it can react to give ...
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
         

         

        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA