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Combined use of laboratory X-ray diffraction and microtomography in early age cement hydration.
(2023)
In situ laboratory X-ray powder diffraction (LXRPD) is widely used for studying cement hydration at
early ages. However, this approach has limitations due to the intrinsic characteristics of the main
methodologies (flat ...
Activation of LC3 binders by C-S-H nucleation seeding with a new tailored admixture for low-carbon cements.
(2023)
The use of supplementary cementitious materials is currently the most favorable
strategy for reducing CO2 emissions in cements. Limestone Calcined Clay Cements,
LC3, are a type of cement that allows the reduction of CO2 ...
ANALYSIS OF BUILDING MATERIALS BY SYNCHROTRON X-RAY IMAGING
(-, 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 ...
Synchrotron X-ray pair distribution function analysis of calcium silicate pastes
(2021)
The analysis of nanocrystalline and amorphous phases in cement matrices which
contain high amounts of crystalline phases is a very challenging task. In this respect,
pair distribution function (PDF) methodology in ...
Belite calcium sulfoaluminate cement early hydration: citric acid sensitivity.
(2023)
Three buckets, corresponding to three selected samples, of the same type of belite calcium sulfoaluminate (BCSA) cements have been studied. These cements show very similar elemental and mineralogical compositions, and ...
Activation of LC3 low-carbon cements by C-S-H seeding.
(2023)
Portland-based Limestone Calcined Clay Cements (LC3) are attracting a lot of the attention from scholars
and field applications due to the reduction in CO2 emissions. However, their low mechanical strengths at
early ages ...
Effect of alkanolamines in kaolinitic calcined clays pozzolanic reactivity.
(2023)
Five kaolinitic clays with different amounts of kaolinite, ranging between ~70 wt% and ~30 wt%, have
been studied to unravel the possible activation effect of alkanolamines on the aluminate fraction of
calcined clays. ...
X-Ray powder diffraction laboratory @ University of Málaga (UMA)
(2016-06-27)
X-Ray Powder Diffraction (XRPD) laboratory is a facility placed at Servicios Centrales de apoyo a la Investigación (SCAI) at University of Malaga (UMA) http://www.scai.uma.es/. This facility has three XRPD diffractometers ...
The use of mo and cu monochromatic radiations for quantitative phase analysis: study of the accuracy
(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 ...
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 ...