Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1527217 | Materials Chemistry and Physics | 2008 | 4 Pages |
Abstract
The setting of gypsum plaster can be monitored by luminescence rigidochromism. The progress of the setting process which is accompanied by hardening is indicated by a blue shift of the phosphorescence of a suitable water soluble rhenium complex. This rigidity increase of the plaster/water mixture takes place in two phases. In the beginning the rigidity increase is rather large while in the second much longer phase it is relatively small. The addition of a plasticizer (or retarder) keeps the rigidity smaller in the beginning, but only slightly affects the final rigidity of the set plaster.
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Materials Science
Electronic, Optical and Magnetic Materials
Authors
Horst Kunkely, Arnd Vogler,