Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1007974
Title: Restoration of semi-industrial glazed ceramic tiles by re-firing
Authors: Chaban, A.
Morais Pereira, S.
Esteves, L.
Peddis, F.
Mimoso, J.
Keywords: Restoration of façade tiles;Re-firing of glazed ceramics;Acquired carbonates in architectural ceramics;Restauro de azulejos por recozimento
Issue Date: 2-Jul-2015
Publisher: Laboratório Nacional de Engenharia Civil
Citation: Proceedings of the International Conference Glazed Ceramics in Architectural Heritage (GlazeArch 2015)
Series/Report no.: RNI 93;
Abstract: Semi-industrial glazed ceramic tiles lining urban façades represent a rich heritage asset of Portuguese cities and in particular of Lisbon. However, still a sizeable part of them is being continuously lost. Whenever the façade tiles are decayed, they are usually merely removed and replaced by newly manufactured ones. Following preliminary tests done at LNEC in 2012, we introduce in this communication re-firing as an alternative to simple disposal of damaged original tiles. We assess the technique as a technological option for the restoration of crazed and spalled tiles. The re-firings are applied at different heatworks and temperatures and the effects of all tests are studied by visual, microscopic observation and through the glaze resistance to a pull-off. The effect of continuous serviceability of the re-fired tiles is assessed through accelerated ageing tests. The domain of application of the technique and the shortcomings detected are presented and discussed in this communication. Dwelling on a new ground, we present the initial results on which further research in this field can be based.
URI: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1007974
ISBN: 978-972-49-2277-5
Appears in Collections:DM/NBPC - Comunicações a congressos e artigos de revista

Files in This Item:
File Description SizeFormat 
18 Restoration of tiles by re-firing.pdfFull text2.84 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.