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A platform for research: civil engineering, architecture and urbanism
A new calcium sulfate-based plaster composed of composite particles
Abstract Flash-calcination of gypsum by a new patented process produces a particular type of plaster. This particular plaster has been characterized and compared to a classical β-plaster. It appears as a stable mixture of hemihydrate and of γ-anhydrite. Because of its composition, this new plaster presents several stable states depending on the storage conditions. A study of its reactivity followed by XRD and thermal analyses has been realized. It reveals that even after several months of exposition under moist atmosphere, γ-anhydrite is still present in the sample. A model of composite particle of plaster is proposed for explaining this unusual behavior.
A new calcium sulfate-based plaster composed of composite particles
Abstract Flash-calcination of gypsum by a new patented process produces a particular type of plaster. This particular plaster has been characterized and compared to a classical β-plaster. It appears as a stable mixture of hemihydrate and of γ-anhydrite. Because of its composition, this new plaster presents several stable states depending on the storage conditions. A study of its reactivity followed by XRD and thermal analyses has been realized. It reveals that even after several months of exposition under moist atmosphere, γ-anhydrite is still present in the sample. A model of composite particle of plaster is proposed for explaining this unusual behavior.
A new calcium sulfate-based plaster composed of composite particles
Berenger, Aranda (author) / Olivier, Guillou (author) / Lanos, Christophe (author) / Daiguebonne, Carole (author) / Freslon, Stéphane (author) / Tessier, Christophe (author) / Laurans, Mélissa (author) / Baux, Christophe (author) / Greffet, Hélène (author)
2014
Article (Journal)
Electronic Resource
English
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