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Assessment of an experimental test setup for glazed tiles by finite element simulations

Title: Assessment of an experimental test setup for glazed tiles by finite element simulations
Author(s): P. Cachim, A. Velosa
Paper category : conference
Book title: 2nd Conference on Historic Mortars - HMC 2010 and RILEM TC 203-RHM final workshop
Editor(s): J. Válek, C. Groot and J.J. Hughes
Print-ISBN: None
e-ISBN: 978-2-35158-112-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 427 - 435
Total Pages: 9
Nb references: 4
Language: English

Abstract: The use of glazed tiles in façades is typical of urban 19th Century Portuguese architecture and an identity marc that has been the subject of studies and thesis denoting the fascination of this artistic expression, but also the complexity of the theme, that still lacks a deep study in order to support conservation and restoration interventions. Ceramic tiles cannot be studied without taking into account their architectonic support, to which they give special chromatics and luminosity. Despite the large cultural heritage represented by buildings with ceramic tile façades, conservation and restoration interventions have been made without a consistent basis. Conservation and restoration interventions need solid scientific knowledge of materials used in the old buildings in order to allow for the development of compatible materials and techniques. The characterization of tiles and mortars has been developed and although characterization schemes are currently applied with success in mortars, further development is needed in terms of tiles and of the mortar/tile system. Some of the main problems to be found in ceramic panels are cracking and detachment originated by differential volumetric variations of the different materials (masonry, mortar and tiles) originated by hydrothermal actions. Numeric modelling of these structural systems will allow for the identification of critical areas, that may need intervention and, above all, numerical experiments can be used to test solutions related with the experimental tests. This paper presents numerical simulation for the determination of mechanical behaviour of tiles that includes tension and shear parameters. The results of the numerical model are compared with results of laboratory tests. The model aims at being a tool to evaluate the compatibility of mortars for the re-adherence of ancient tiles.

Online publication: 2010-10-25
Publication type : full_text
Public price (Euros): 0.00

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