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Advanced synchrotron studies of ye'elimite-based cement pastes
(2018-07-18)
Synchrotron characterization techniques [1] are being used to study Portland-based cements and recently also CSA and related cements. A key property of these techniques is that they do not require sample preparation, so ...
In-situ hydration study of sulfobelite eco-cements
(2013-09-12)
Influence of the calcium sulfate source on the rheological behaviour of calcium sulfoaluminate cement pastes
(2013-09-13)
Calcium sulfoaluminate (CSA) cements are receiving increasing attention since their manufacture produces much less CO2 than ordinary Portland cement (OPC) [1]. In addition, they show interesting properties such as high ...
In-situ Molibdenum X-ray powder diffraction study of the early hydration of cementitious systems on a humidity chamber
(2016-07-06)
The durability of cement-based construction materials depends on the environmental conditions during their service
life. A further factor is the microstructure of the cement bulk, established by formation of cement hydrates. ...
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 ...
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 ...
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 ...