Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1003682
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dc.contributor.authorFreire, T.pt_BR
dc.contributor.authorSantos Silva, A.pt_BR
dc.contributor.authorVeiga, M. R.pt_BR
dc.contributor.authorBrito, J.pt_BR
dc.contributor.editorJan Valék, John J. Hughes and Caspar J.W.P. Grootpt_BR
dc.date.accessioned2012-08-14T12:30:48Zpt_BR
dc.date.accessioned2014-10-20T16:32:40Zpt_BR
dc.date.accessioned2017-04-12T13:33:57Z-
dc.date.available2012-08-14T12:30:48Zpt_BR
dc.date.available2014-10-20T16:32:40Zpt_BR
dc.date.available2017-04-12T13:33:57Z-
dc.date.issued2012-06pt_BR
dc.identifier.citationHistoric Mortars: Characterisation, Assessment and Repairpt_BR
dc.identifier.isbn978-94-007-4634-3pt_BR
dc.identifier.issn2211-0844pt_BR
dc.identifier.other10.1007/978-94-007-4635-0pt_BR
dc.identifier.urihttps://repositorio.lnec.pt/jspui/handle/123456789/1003682-
dc.description.abstractThe use of gypsum plaster for the interior coating of walls and ceilings in the Portuguese architecture was particularly expressive in the period between the XVIII and the XX century. However, information about this important heritage is almost nonexistent, which is leading to a rapid loss of important patrimony. In this paper the results of the characterisation of five gypsum plaster samples from the second half of the XIX century belonging to the Arabian Room of the Bolsa Palace, located in Oporto, North of Portugal, are presented and discussed. XRD and TGA-DTA techniques were used to establish the mineralogical composition, and the relative proportions of the binders. Optical microscopy and FESEM-EDS observations were performed both in fractured and polished surfaces in order to determine the stratigraphy and the composition of individual layers. The results of this characterisation work showed that the plasters used were mainly composed of gypsum and hydrated lime in different proportions – a feature that was correlated with the application techniques of the decorative elements analyzed - and allowed the determining of the restoration interventions they had already been submitted to. Some physical properties like the dynamic modulus of elasticity and capillary absorption were also determined, and a correlation between the results obtained was established with previous studies performed by the authors.pt_BR
dc.description.sponsorshipTeresa Freire’s PhD research is being supported by the scholarship SFRH/BD/40128/2007 from Fundação para a Ciência e Tecnologia (FCT). The authors would like to thank technicians Susana Couto and Paula Menezes from the Materials Department and Ana Maria Francisco from the Buildings Department of LNEC, for their support in the execution of the experimental work.pt_BR
dc.language.isoengpt_BR
dc.publisherSpringerpt_BR
dc.rightsopenAccesspt_BR
dc.subjectGypsum plasterspt_BR
dc.subjectCharacterisationpt_BR
dc.subjectXrdpt_BR
dc.subjectTga-dtapt_BR
dc.subjectMicroscopypt_BR
dc.subjectCapillary absorptionpt_BR
dc.titleCharacterization of decorative Portuguese gypsum plasters from the 19th and 20th centuries: the case of the Bolsa Palace in Oportopt_BR
dc.typebookpt_BR
dc.description.figures8pt_BR
dc.description.tables4pt_BR
dc.description.pages141-151pppt_BR
dc.description.volumeVolume 7, RILEM Bookseriespt_BR
dc.description.sectorDM/NMMpt_BR
Appears in Collections:DM/NMM - Comunicações a congressos e artigos de revista

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