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Phase-selective degree of hydration at setting: An in situ synchrotron diffraction study
(Elsevier, 2022-03)
Setting of Portland cements is still not well understood. Previous studies used techniques that analyse the pastes as a whole to correlate setting times with degree of hydration. Here, in-situ synchrotron X-ray diffraction ...
Experimental and theoretical high pressure study of calcium hydroxyaluminate phases
(Elsevier, 2017)
Five calcium hydroxyaluminate phases have been investigated by synchrotron powder diffraction at high-pressure:
two hydrogarnets, kuzelite, stratlingite and ettringite. The obtained bulk modulus, K0, for kuzelite,
stratlingite ...
Aluminum Hydroxide Gel Characterization within a Calcium Aluminate Cement Paste by Combined Pair Distribution Function and Rietveld Analyses
(Elsevier, 2017-06)
There are many commercially important multiphase materials which contain amorphous phases, such as cement
pastes, porcelains, glass-ceramics or pharmaceutical compounds. However, the analysis of amorphous phase(s)
within ...
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 ...
Effect of calcium sulfate source on the hydration of calcium sulfoaluminate eco-cement
(2014)
The availability of cements, including eco-cements, with tailored mechanical properties is very important
for special applications in the building industry. Here we report a full study of the hydration of calcium
sulfoaluminate ...
Rietveld quantitative phase analysis of yeelimite-containing cements
(Karen Scrivener, 2012)
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, ...
Amorphous determination in calcium sulfoaluminate materials by external and internal methods
(ICE Publishing, 2014)
External standard methodology has been successfully applied to quantify the known amounts of amorphous component that are increasingly added to cement-related materials. The consistency and accuracy of the methodology were ...
Hydration Reactions and Mechanical Strength Developments of Iron- Rich Sulfobelite Eco-cements
(2013)
Belite calcium sulfoaluminate (BCSA) cements are low-CO2 building materials. However, their hydration behavior and its effect on mechanical properties have still to be clarified. Here, we report a full multitechnique study ...
Hydration characteristics and mechanical performances of LC3 binders with spanish kaolinitic calcined clays
(2022)
Limestone Calcined Clay Cements (LC3) are binders with complex phase development and
microstructures. Although the hydration chemistry of these cements are being widely researched [1],
due to the clay mineralogy variability, ...
Processing of calcium sulfoaluminate eco-cement coatings containing microencapsulated phase change materials.
(ICE Publishing, 2023-11-11)
On the one hand, calcium sulfoaluminate (CSA) eco-cements release about 40% less carbon dioxide (CO2) than Portland
cement during fabrication; on the other hand, phase change materials dispersed in a cementitious matrix ...