Gypsum hydration: a theoretical and experimental study

Qingliang Yu, Jos Brouwers, A.C.J. de Korte

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Abstract

Calcium sulphate dihydrate (CaSO4·2H2O or gypsum) is used widely as building material because of its excellent fire resistance, aesthetics, and low price. Hemihydrate occurs in two formations of α- and β-type. Among them β-hemihydrate is mainly used to produce gypsum plasterboard since the hydration product of the α-hemihydrate is too brittle to be used as building material /10/. This article addresses the hydration of hemihydrate since it determines the properties of gypsum and it is influenced strongly by water and the properties of hemihydrate. The microstructure development of gypsum during hydration is investigated. The influence of water is studied from its effect on fresh behavior and void fraction of the gypsum.
Original languageUndefined
Title of host publicationProceedings 17th Ibausil, international conference on building materials (internationale baustofftagung), 23-26 September 2009, Weimar, Germany
EditorsH.B Fischer, K.A. Bode
Place of PublicationWeimar, Germany
PublisherBauhaus-Universitat Weimar
Pages1-0783-1-0788
Number of pages6
ISBN (Print)978-3-00-027265-3
Publication statusPublished - 23 Sep 2009
Event17th International Conference on Building Materials, ibausil - Weimar, Germany
Duration: 23 Sep 200926 Sep 2009

Publication series

Name
PublisherF.A. Finger - Institut für Baustoffkunde, Bauhaus-Universität Weimar

Conference

Conference17th International Conference on Building Materials, ibausil
Period23/09/0926/09/09
Other23-26 September 2009

Keywords

  • METIS-258973
  • IR-67946

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