• Aluminum-rich belite sulfoaluminate cements: clinkering and early age hydration 

      Martín-Sedeño, M. Carmen; Cuberos, Antonio J M; De la Torre, Angeles G.; Álvarez-Pinazo, Gema; Ordónez, Luis M; [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. ...
    • Rietveld Quantitative Phase Analysis of OPC Clinkers, Cements and Hydration Products 

      Aranda, Miguel A. G.; De la Torre, Angeles G.; León-Reina, Laura (Mineralogical Society of America, 2012)
    • Rietveld quantitative phase analysis of yeelimite-containing cements 

      Álvarez-Pinazo, Gema; Cuesta, Ana; García-Maté, Marta; Santacruz, 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, ...
    • Reactive belite stabilization mechanisms by boron-bearing dopants 

      Cuesta, Ana; Losilla, Enrique R.; Aranda, Miguel A. G.; Sanz, Jesús; De la Torre, Angeles G. (Elselvier, 2012-01-27)
      Belite-rich cements hold promise for reduced energy consumption and CO2 emissions, but their use is hindered by the slow hydration rates of ordinary belites. This drawback may be overcome by activation of belite by doping. ...
    • Rietveld quantitative phase analysis of Yeelimite-containing cements 

      Álvarez-Pinazo, Gema; Cuesta, Ana; García-Maté, Marta; Santacruz, 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, ...
    • Hydration Reactions and Mechanical Strength Developments of Iron- Rich Sulfobelite Eco-cements 

      Álvarez-Pinazo, Gema; Santacruz, Isabel; León-Reina, Laura; Aranda, Miguel A. G.; De la Torre, Angeles G. (2013)
      Belite calcium sulfoaluminate (BCSA) cements are low-CO2 building materials. However, their hydration behavior and its effect on mechanical properties have still to be clarified. Here, we report a full multitechnique study ...
    • Structure, Atomistic Simulations, and Phase Transition of Stoichiometric Yeelimite 

      Cuesta, Ana; De la Torre, Angeles G.; Losilla, Enrique R.; Peterson, Vanessa K.; Rejmak, Pawel; [et al.] (ACS publications, 2013)
      ABSTRACT: Yeelimite, Ca4[Al6O12]SO4, is outstanding as an aluminate sodalite, being the framework of these type of materials flexible and dependent on ion sizes and anion ordering/disordering. On the other hand, yeelimite ...
    • Hydration studies of calcium sulfoaluminate cements blended with fly ash 

      García-Maté, Marta; De la Torre, Angeles G.; León-Reina, Laura; Aranda, Miguel A. G.; Santacruz, 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 ...
    • Mechanism of stabilization of dicalcium silicate solid solution with aluminium 

      Cuesta, Ana; Aranda, Miguel A. G.; Sanz, Jesús; De la Torre, Angeles G.; Losilla, Enrique R. (ELSEVIER, 2013-11-11)
      Stoichiometric dicalcium silicate, Ca2SiO4, displays a well-known polymorphism with temperature. When this phase is doped by a range of elements, belite, one of the main phases of cements, is generated. Here, we thoroughly ...
    • Effect of calcium sulfate source on the hydration of calcium sulfoaluminate eco-cement 

      García-Maté, Marta; De la Torre, Angeles G.; León-Reina, Laura; Losilla, Enrique R.; Aranda, Miguel A. G.; [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 ...
    • In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction 

      Álvarez-Pinazo, Gema; Cuesta, Ana; García-Maté, Marta; Santacruz, 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 ...
    • Rietveld quantitative phase analysis with molybdenum radiation 

      Cuesta, Ana; Álvarez-Pinazo, Gema; García-Maté, Marta; Santacruz, Isabel; Aranda, Miguel A. G.; [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 ...
    • Pseudo-cubic crystal structure and phase transition in doped ye'elimite 

      Cuesta, Ana; De la Torre, Angeles G.; Losilla, Enrique R.; Santacruz, Isabel; Aranda, Miguel A. G. (ACS publications, 2014)
      Sodalites are tridimensional alumino-silicate materials containing cages where loosely bonded anions are located. Ye'elimite, Ca4[Al6O12]SO4, is outstanding as an aluminate sodalite with a flexible framework accepting ...
    • Amorphous determination in calcium sulfoaluminate materials by external and internal methods 

      García-Maté, Marta; Santacruz, Isabel; Cuesta, Ana; León-Reina, Laura; Aranda, Miguel A. G.; [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 ...
    • Hydration mechanisms of two polymorphs of synthetic ye'elimite 

      Cuesta, Ana; Álvarez-Pinazo, Gema; Sanfeliz-Garcia, Susana; Peral, Inma; Aranda, Miguel A. G.; [et al.] (Elsevier, 2014-05-26)
      Ye'elimite is the main phase in calcium sulfoaluminate cements and also a key phase in sulfobelite cements. However, its hydrationmechanismis not well understood. Here we reported newdata on the hydration behavior of ...
    • Structure of stratlingite and effect of hydration methodology on microstructure 

      Santacruz, Isabel; De la Torre, Angeles G.; Álvarez-Pinazo, Gema; Cabeza-Diaz, Aurelio; Cuesta, Ana; [et al.] (ICE publishing, 2015)
      Stratlingite, Ca4Al2(OH)12[AlSi(OH)8]2•2H2O, is an AFm phase which appears as hydration product of aluminum-rich cements. These binders may be calcium aluminate cements, calcium sulfoaluminate cements and also Belite Calcium ...
    • Recent studies of cements and concretes by synchrotron radiation crystallographic and cognate methods 

      Aranda, Miguel A. G. (Taylon & Francis, 2015)
      The portfolio of available synchrotron radiation techniques is increasing notably for cements and pastes. Furthermore, sometimes the terminology is confusing and an overall picture highlighting similarities and differences ...
    • Hydration of C4AF in the presence of other phases: A synchrotron X-ray powder diffraction study 

      Cuesta, Ana; Santacruz, Isabel; Sanfeliz-Garcia, Susana; Fauth, François; Aranda, Miguel A. G.; [et al.] (Elsevier, 2015)
      Hydration behaviour of C4AF in selected experimental conditions has been determined. C4AF has been hydrated in the absence and presence of gypsum, two polymorphs of ye’elimite and different water/solid ratios. C4AF in ...
    • Rheological and hydration characterization of calcium sulfoaluminate cement pastes 

      García-Maté, Marta; Santacruz, Isabel; De la Torre, Angeles G.; León-Reina, Laura; Aranda, Miguel A. G. (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 ...
    • 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 ...