RT Journal Article
T1 Amorphous determination in calcium sulfoaluminate materials by external and internal methods
A1 García-Maté, Marta
A1 Santacruz-Cruz, María Isabel
A1 Cuesta-García, Ana María
A1 León-Reina, Laura
A1 García-Aranda, Miguel Ángel
A1 Baco, Isabelle
A1 Morin, Vincent
A1 Walenta, Günther
A1 Gartner, Ellis
A1 Gómez-de-la-Torre, María de los  Ángeles
K1 Cristalografía por rayos X
AB 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 demonstrated by the R2 values of the least-square fits determined against weighed amorphous amounts, which were close to 1.0 in all the series. This method requires common laboratory X-ray powder diffractometers (knowing the equipment constant) and avoids the dilution/alteration of the sample. However, the obtained values may be biased due to poor particle statistics. On the other hand, internal standard analysis in transmission geometry is suitable to determine the absolute amorphous and crystalline non-quantified contents that are less biased owing to enhanced particle averaging statistics. This method is, however, experimentally tedious due to the addition of the internal standard and the sample loading in the X-ray diffraction sample holders which represent inherent drawbacks to follow amorphous evolutions.
PB ICE Publishing
SN 0951-7197
YR 2014
FD 2014
LK http://hdl.handle.net/10630/13638
UL http://hdl.handle.net/10630/13638
LA eng
NO Advances in cement research, vol 27, n.17 (2015))
NO Sitio Web de la revista: http://www.icevirtuallibrary.com/toc/jadcr/current
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026