A time-resolved synchrotron energy dispersive diffraction study of the dynamic aspects of the synthesis of ettringite during minepacking

• Main Authors: Muhamad, M. N., Barnes, P., Fentiman, C. H., Hausermann, D., Pollmann, H., Rashid, S.
• Format: Article
• Published: Elsevier Science 1993
• Subjects: QD Chemistry; TA Engineering (General). Civil engineering (General); QC Physics
• Online Access: http://eprints.utm.my/id/eprint/6727/; http://doi.dx.org/10.1016/0008-8846(93)90091-M

Synchrotron radiation - energy dispersive diffraction has been used as a method for in-situ studies on the hydration of cements. The rapid data capture of the technique permits a time-resolved analysis of hydrating cement species under realistic (chosen) conditions. We report on a study of the early hydration of minepack mixtures forming ettringite: the growth can be perceived over steps as small as 20 seconds, as also the shifts in diffraction peak positions which are interpreted in terms of a time-dependent composition of the ettringite phase