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Rietveld quantitative phase analysis with molybdenum radiation
(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 ...
Hydration mechanisms of two polymorphs of synthetic ye'elimite
(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 ...
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 ...
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 ...
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 ...
Water-to-cement ratio influence on low-carbon cements performances
(2019)
Portland Cement (PC) is the most important active ingredient in most of the construction concrete. However, the PC production is associated with a high carbon dioxide release (around 1 ton of CO2 per ton of PC). One approach ...
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 ...