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ALBA Synchrotron Light Source
(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 ...
Clinkering and early age hydration characterization of Belite-Alite Calcium Sulfoaluminate (BACSA) cements
(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 ...
Design and optimisation of new formulations of Belite-Alite Calcium Sulfoaluminate (BACSA) eco-cements
(2015-07-02)
Belite Calcium SulfoAluminate (BCSA) eco-cements were developed as OPC substitutes since in their production release 22% less CO2 than OPC. BCSA eco-cements contain belite as main phase (>50 wt%) and ye'elimite as secondary ...
Hydration of C4AF in the presence of other phases: A synchrotron X-ray powder diffraction study
(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 ...
In-situ early age hydration of cement-based materials by synchrotron X-ray powder diffraction
(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 ...
Hydration study of Belite-Alite Calcium Sulfoaluminate (BACSA) cement blended with fly ash
(2015-10-26)
The main objective of this work is to understand the effect of the addition of fly ash (0, 15 and 30 wt%) in the hydration of a BACSA cement paste (water/cement=0.4) prepared with 12 wt% of anhydrite. The pastes were ...
Powder diffraction at ALBA synchrotron
(2015-03-23)
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 ...
Recent studies of cements and concretes by synchrotron radiation crystallographic and cognate methods
(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 ...
Rheological and hydration characterization of calcium sulfoaluminate cement pastes
(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 ...
Structure of stratlingite and effect of hydration methodology on microstructure
(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 ...