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Quantitative disentanglement of nanocrystalline phases in cement pastes by synchrotron ptychographic X-ray tomography
(IUCr, 2019)
Mortars and concretes are ubiquitous materials with very complex hierarchical microstructures. To fully understand their main properties and to decrease their CO2 footprint, a sound description of their spatially resolved ...
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 ...
Multiscale understanding of tricalcium silicate hydration reactions
(Nature Publishing Group, 2018-06)
Tricalcium silicate, the main constituent of Portland cement, hydrates to produce crystalline calcium
hydroxide and calcium-silicate-hydrates (C-S-H) nanocrystalline gel. This hydration reaction is poorly
understood at ...
Pseudo-cubic crystal structure and phase transition in doped ye'elimite
(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 ...
Photocatalytic behavior of phosphonate-based hybrid materials on dyes and phenols degradation
(2013-09-25)
There is increasing interest in using heterogeneous catalysis for mineralization of
organic pollutants. Within Advanced Oxidation Processes (AOPs), Photo-Fenton
reaction is one of the most efficient methodologies. To ...
Mechanism of stabilization of dicalcium silicate solid solution with aluminium
(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 ...
Rietveld quantitative phase analysis of Yeelimite-containing cements
(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, ...
Quantitative phase Analisis: A comparative study of Mo and Cu strictly monochromatic radiations
(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 ...
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 ...
The role of raw powder diffraction data in peer review; past, present and future
(2019-09-05)
Scientific data in our community can be classified, in broad terms, in three large categories: raw, reduced and derived data. IUCr has been very active in promoting the sharing of reduced and derived data for decades in ...