• 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 Isabel; Vallcorba, Oriol; [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 ...
    • Amorphous determination in calcium sulfoaluminate materials by external and internal methods 

      García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Cuesta-Garcia, Ana Maria; León-Reina, Laura; García-Aranda, Miguel Ángel; [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 ...
    • 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-Garcia, Ana Maria; 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 ...
    • Difracción de rayos-x (DRX) y cementos: desde la investigación hasta el control de calidad 

      García-Maté, 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 ...
    • Effect of calcium sulfate source on the hydration of calcium sulfoaluminate eco-cement 

      García-Maté, Marta; Gomez-de-la-Torre, Maria de los Angeles; León-Reina, Laura; Losilla, Enrique R.; García-Aranda, Miguel Ángel; [et al.] (2014)
      The availability of cements, including eco-cements, with tailored mechanical properties is very important for special applications in the building industry. Here we report a full study of the hydration of calcium sulfoaluminate ...
    • Effect of different retarders on the hydration of calcium sulfoaluminate eco-cement pastes 

      García-Maté, Marta; Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel; Santacruz-Cruz, Maria Isabel (2014-07-09)
      The manufacture of Calcium SulfoAluminate (CSA) cements is more environmentally friendly than that of OPC [1] as their production releases up to 40% less CO2 than the latter. The main performances of CSA cements are fast ...
    • Hydration studies of calcium sulfoaluminate cements blended with fly ash 

      García-Maté, Marta; Gomez-de-la-Torre, Maria de los Angeles; León-Reina, Laura; García-Aranda, Miguel Ángel; Santacruz-Cruz, Maria Isabel (Elsevier, 2013)
      The main objective of this work is to study the hydration and properties of calciumsulfoaluminate cement pastes blended with fly ash (FA) and the corresponding mortars at different hydration ages. Laboratory X-ray ...
    • In-situ early age hydration of cement-based materials by synchrotron X-ray powder diffraction 

      García-Maté, Marta; Álvarez-Pinazo, Gema; León-Reina, Laura; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel; [et al.] (2015-07-01)
      Cement based binders are building materials of worldwide importance. Since these samples are very complex, the knowledge/control of their mineralogical composition are essential to design and predict materials with ...
    • In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction 

      Álvarez-Pinazo, Gema; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Losilla, Enrique R.; [et al.] (Karen Scrivener, 2014)
      Eco-friendly belite calcium sulfoaluminate (BCSA) cement hydration behavior is not yet well understood. Here,we report an in-situ synchrotron X-ray powder diffraction study for the first hours of hydration of BCSA ...
    • In-situ hydration study of sulfobelite eco-cements 

      Álvarez-Pinazo, Gema; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Ramirez-Losilla, Enrique; [et al.] (2013-09-12)
    • Influence of the calcium sulfate source on the rheological behaviour of calcium sulfoaluminate cement pastes 

      Santacruz-Cruz, Maria Isabel; García-Maté, Marta; García-Aranda, Miguel Ángel; Gomez-de-la-Torre, Maria de los Angeles (2013-09-13)
      Calcium sulfoaluminate (CSA) cements are receiving increasing attention since their manufacture produces much less CO2 than ordinary Portland cement (OPC) [1]. In addition, they show interesting properties such as high ...
    • 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 ...
    • Quantitative phase Analisis: A comparative study of Mo and Cu strictly monochromatic radiations 

      Gomez-de-la-Torre, Maria de los Angeles; León-Reina, Laura; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Álvarez-Pinazo, Gema; [et al.] (2016-06-27)
      A comparison of the Rietveld quantitative phase analyses (RQPA) obtained using Cu-Kα1, Mo-Kα1, and synchrotron strictly monochromatic radiations is presented. The main aim is to test a simple hypothesis: high energy ...
    • Rheological and hydration characterization of calcium sulfoaluminate cement pastes 

      García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Gomez-de-la-Torre, Maria de los Angeles; León-Reina, Laura; García-Aranda, Miguel Ángel (2015-05-14)
      Calcium sulfoaluminate (CSA) cements are currently receiving a lot of attention because their manufacture produces less CO2 than ordinary Portland cement (OPC). However, it is essential to understand all parameters which ...
    • Rietveld quantitative phase analyses of SRM 2686a: a standard Portland clinker 

      García-Maté, Marta; Álvarez-Pinazo, Gema; León-Reina, Laura; Gomez-de-la-Torre, Maria de los Angeles (2018-10-03)
      SRM 2686a is a NIST reference Portland clinker with reported mineralogical analysis from powder diffraction and electron microscopy. This sample is used in ASTM C1365 test method for Rietveld quantitative phase analysis ...
    • Rietveld quantitative phase analysis of yeelimite-containing cements 

      Álvarez-Pinazo, Gema; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Losilla, Enrique R.; [et al.] (Karen Scrivener, 2012)
      Yeelimite-containing cements are attracting attention for their tailored properties. Calcium sulfoaluminate, CSA, cements have high contents of Yeelimite and they are used for special applications. Belite calcium sulfoaluminate, ...
    • Rietveld quantitative phase analysis of Yeelimite-containing cements 

      Álvarez-Pinazo, Gema; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Losilla, Enrique R.; [et al.] (Elsevier, 2012-03-26)
      Yeelimite-containing cements are attracting attention for their tailored properties. Calcium sulfoaluminate, CSA, cements have high contents of Yeelimite and they are used for special applications. Belite calcium sulfoaluminate, ...
    • Rietveld quantitative phase analysis with molybdenum radiation 

      Cuesta-Garcia, Ana Maria; Álvarez-Pinazo, Gema; García-Maté, Marta; Santacruz-Cruz, Maria Isabel; García-Aranda, Miguel Ángel; [et al.] (Cambridge Core, 2014)
      Building materials are very complex samples of worldwide importance; hence quantitative knowledge of their mineralogical composition is necessary to predict performances. Rietveld quantitative phase analysis (RQPA) allows ...
    • Tailored setting times with high compressive strengths in bassanite calcium sulfoaluminate eco-cements 

      García-Maté, Marta; Londono-Zuluaga, Diana; Gomez-de-la-Torre, Maria de los Angeles; Losilla, Enrique R.; Cabeza-Diaz, Aurelio; [et al.] (Elsevier, 2016-09)
      This work deals with the hydration of a calcium sulfoaluminate (CSA) eco-cement prepared with bassanite and different additives (type and content) at a fixed water/CSA ratio of 0.5. Pastes prepared with bassanite show high ...
    • The use of mo and cu monochromatic radiations for quantitative phase analysis: study of the accuracy 

      Gomez-de-la-Torre, Maria de los Angeles; León-Reina, Laura; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Álvarez-Pinazo, Gema; [et al.] (2016-06-27)
      Cement hydration is a very complex process in which crystalline phases are dissolving in water and after supersaturation hydrated crystalline and amorphous phases precipitate. Great efforts are being made to develop ...