Amorphous determination in calcium sulfoaluminate materials by external and internal methods

Marta García-Maté; Isabel Santacruz; Ana Cuesta; Laura León-Reina; Miguel A. G. Aranda; Isabelle Baco; Vincent Morin; Günther Walenta; Ellis Gartner; Ángeles G. De la Torre

doi:10.1680/adcr.14.00026

journal article·2015-07Open access

Amorphous determination in calcium sulfoaluminate materials by external and internal methods

Marta García-Maté, Isabel Santacruz, Ana Cuesta, Laura León-Reina, Miguel A. G. Aranda, Isabelle Baco, Vincent Morin, Günther Walenta, Ellis Gartner, Ángeles G. De la Torre

Advances in Cement Research· Volume 27· Issue 7

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Source abstract

Abstract

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 R²values 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.

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Research context

OpenAlex topics: X-ray Diffraction in Crystallography · Concrete and Cement Materials Research · Nuclear materials and radiation effects

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

PhD student, Departamento de Química Inorgánica, Universidad de Málaga, Malaga, Spain

Ramón y Cajal Fellow, Departamento de Química Inorgánica, Universidad de Málaga, Malaga, Spain

X-ray diffraction laboratory supervisor, Servicios Centrales de Apoyo a la Investigación, Universidad de Málaga, Malaga, Spain

Professor, Departamento de Química Inorgánica, Cristalografía y Mineralogía, Universidad de Málaga, Málaga, Spain; CELLS-Alba synchrotron, Cerdanyola, Barcelona, Spain

Research and development technician, Lafarge Centre de Recherche, Saint-Quentin-Fallavier, France

Project leader – Aether research, Lafarge Centre de Recherche, Saint-Quentin-Fallavier, France

Project manager CO2, Lafarge Centre de Recherche, Saint-Quentin-Fallavier, France

Scientific director, Chemistry, Lafarge Centre de Recherche, Saint-Quentin-Fallavier, France

Lecturer, Departamento de Química Inorgánica, Universidad de Málaga, Malaga, Spain

References (17)

Show source-provided references

1. 10.1016/j.cemconres.2012.03.01810.1016/j.cemconres.2012.03.018 ↗

2. 10.1533/9780857098993.4.48810.1533/9780857098993.4.488 ↗

3. 10.2138/rmg.2012.74.510.2138/rmg.2012.74.5 ↗

4. Cline JP · Acta Crystallographica Section A · 2011 · 67 · 35710.1107/S0108767311014565 ↗

5. 10.1021/cm400129z10.1021/cm400129z ↗

6. 10.1107/S002188980301375X10.1107/S002188980301375X ↗

7. 10.1107/S002188980100248510.1107/S0021889801002485 ↗

8. 10.1107/S002188988608945810.1107/S0021889886089458 ↗

9. 10.1107/S002188989400421810.1107/S0021889894004218 ↗

10. 10.1016/j.cemconres.2004.01.02110.1016/j.cemconres.2004.01.021 ↗

11. 10.1016/j.cemconres.2011.03.00410.1016/j.cemconres.2011.03.004 ↗

12. 10.1154/1.354918610.1154/1.3549186 ↗

13. 10.1017/S088571560001302610.1017/S0885715600013026 ↗

14. Pérez-Bravo R · Advances in Cement Research · 2013 · 26 · 1010.1680/adcr.12.00044 ↗

15. 10.1107/S002188988708709010.1107/S0021889887087090 ↗

16. 10.1154/1.318782810.1154/1.3187828 ↗

17. Westphal T · International Cement Review · 2002 · 47