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Synchrotron x-ray pair distribution function: A tool to characterize cement gels
(2018-07-06)
Cement matrices contain large amounts of crystalline phases jointly with amorphous and/or nanocrystalline phases. Consequently, their analyses are very challenging. Synchrotron powder diffraction in combination with the ...
Synchrotron pair distribution function approach applied to cement samples
(2019-10-14)
The characterization of the nanocrystalline/amorphous materials is very challenging but the presence of these materials mixed with large amounts of crystalline phases makes the analysis even more complicated. This is the ...
Ptychographic X-ray computed tomography analysis of cement pastes
(2019-10-04)
Ptychographic X-ray computed tomography provides 3D electron mass density and attenuationcoefficient distributions of unaltered cement pastes with an isotropic resolution below 100 nm. Thisimaging technique allows ...
Alite hydration mechanism in presence of ye’elimite related to BAY cements
(2019-10-08)
One alternative to decrease CO2 emissions from ordinary Portland Cement (OPC) production consists
on the development of a new kind of eco-cements composed by less calcite demanding phases. That is
the case of ...
Diffraction for industries, businesses and health
(2019-10-01)
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Processing and characterisation of calcium sulphoaluminate ecocements containing Microencapsulated Phase Change Materials
(2018-07-17)
Calcium SulphoAluminate (CSA) cements can be considered as ecocements, since their production releases up to 40% less CO2 than Ordinary Portland Cement (OPC) [1]. In addition, Microencapsulated Phase Change Materials (MPCM) ...
Proton conductivity of multifunctional metal phosphonate frameworks
(2015-03-23)
Metal phosphonates exhibit attractive characteristics for proton conductivity, such as tunable functionality, chemical and thermal stability and the existence of H-bond networks with acidic protons within their structure.1
In ...
Processing and characterisation of Calcium SulfoAluminate (CSA) eco-cements coated with a hybrid organo-inorganic material for photocatalytic applications
(2015-07-27)
On the one hand, Calcium SulfoAluminate (CSA) eco-cements are receiving increasing attention since their manufacture produces up to 40% less CO2 than ordinary Portland cement (OPC). In addition, they show interesting ...
Synchrotron X-ray pair distribution function analysis of tricalcium silicate pastes
(2019-09-24)
The analysis of nanocrystalline and amorphous components within cement pastes that contain high amounts of crystalline phases is very challenging. Synchrotron powder diffraction jointly with the pair distribution function ...
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 ...