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    Listar por autor "Gomez-de-la-Torre, Maria de los Angeles"

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      • 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, Maria IsabelAutoridad Universidad de Málaga; Vallcorba, Oriol; Gomez-de-la-Torre, Maria de los AngelesAutoridad 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 ...
      • 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; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria 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 ...
      • 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, Maria IsabelAutoridad Universidad de Málaga; Gomez-de-la-Torre, Maria de los AngelesAutoridad 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; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria 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 ...
      • Alternative non-Portland binders 

        Hanein, Theodore; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Zhang, Zuhua; Provis, John L. (Mineralogical Society of America, 2022)
        A background on non-Portland cementitious binders is presented, followed by a review of the key alternative binders that are currently of interest. The mineralogy of these cements is described, along with phases present ...
      • 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; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria 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; Gomez-de-la-Torre, Maria de los AngelesAutoridad 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, Maria 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; Gomez-de-la-Torre, Maria de los AngelesAutoridad 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, Ana; Morales-Cantero, Alejandro; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria 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; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria 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 ...
      • Assessment of the quantitative accuracy of Rietveld/XRD analysis of crystalline and amorphous phases in fly ash 

        Zhao, Piqi; Liu, Xianping; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Lu, Lingchao; Sobolev, Konstantin (2017)
        An internal standard method based on Rietveld/XRD whole-pattern fitting analysis of fly ash is used to assess the quantitative accuracy to determine its crystalline and amorphous phases under various conditions such as ...
      • Behavior of Belite cement blended with Calcium sulfoaluminate cement: an Ecocement 

        Londono-Zuluaga, Diana; Pineda, Juan Manuel; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga (2019-09-26)
        Belite Portland Cements (BPC) and calcium sulfoaluminate cements (CSA) are considered as environmentally friendly cements due to their lower CO2 emissions. These ecocements (BPC and CSA) emit about 0.03 and 0.18 less tons ...
      • Belite hydration at high temperature and pressure by in situ synchrotron powder diffraction 

        Morales-Cantero, Alejandro; Gomez-de-la-Torre, Maria de los AngelesAutoridad 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 ...
      • C-S-H seeding activation of Portland and Belite cements: An enlightening in situ synchrotron powder diffraction study 

        Morales-Cantero, Alejandro; Cuesta-García, Ana María; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria IsabelAutoridad Universidad de Málaga; Mazanec, Oliver; Borralleras, Pere; Weldert, Kai S.; Gastaldi, Daniela; Canonico, Fulvio; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (Elsevier, 2022-11)
        C-S-H seeding in Portland cements is well known from basic scientific works and field applications. Moreover, this activation approach could be beneficial for low-CO2 cements under development where a general drawback is ...
      • Calcium aluminate cement conversion analysed by ptychographic nanotomography 

        Shirani, Shiva; Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Diaz, Ana; Trtrik, Pavel; Holler, Mirko; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (Elsevier, 2020-08-17)
        Calcium aluminate cements are used for special applications but are nowadays banned for general structural purposes due to the calcium aluminate hydrate conversion, that has led, for concretes fabricated with high water ...
      • Calcium sulfoaluminate composites incorporating microencapsulated phase change materials for thermal energy storage in buildings 

        Garcia Sanfelix, Susana (UMA Editorial, 2021-06-18)
        This thesis focuses on investigating the development of new calcium sulfoaluminate cement composite incorporating microencapsulated phase change materials (MPCMs).Calcium sulfoaluminate cements are a type of more sustainable ...
      • Cementos de arcillas calcinadas y caliza preparados en la Universidad de Málaga 

        Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria IsabelAutoridad Universidad de Málaga; Cuesta-García, Ana María; Bernal, Isabel M.R.; Redondo-Soto, Cinthya; Morales-Cantero, Alejandro; Shirani, Shiva; Pérez Bravo, Raquel; Franco-Duro, Francisco IgnacioAutoridad Universidad de Málaga; García-Mate, Marta; Salcedo, Inés R.; Leon Reina, Laura; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (2022)
        Adjuto documento
      • Chemistry and Mass Density of Aluminum Hydroxide Gel in Eco-Cements by Ptychographic X-ray Computed Tomography 

        Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria IsabelAutoridad Universidad de Málaga; Trtik, Pavel; Da Silva, Julio C.; Diaz, Ana; Holler, Mirko; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (ACS, 2017)
        Eco-cements are a desirable alternative to ordinary Portland cements because of their lower CO2 footprints. Some ye’elimite-based ecocements are attracting a lot of interest. Understanding the reasons for the mechanical ...
      • Clinkering and early age hydration characterization of Belite-Alite Calcium Sulfoaluminate (BACSA) cements 

        Londono-Zuluaga, Diana; Álvarez-Pinazo, Gema; Tobón, Jorge Iván; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga; Santacruz-Cruz, Maria IsabelAutoridad Universidad de Málaga; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga[et al.] (2015-10-26)
        In this work, four BACSA clinkers with different compositions (belite ~ 70-55 wt %, alite ~ 10-15 wt % and ye’elimite ~ 10-15 wt %) were synthesized (at laboratory scale). Lime, gypsum, kaolin and sand were used as raw ...
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
         

         

        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA