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BIBTEX RIS

Análise e avaliação da deterioração do revestimento de mármore da cúpula da Catedral Metropolitana de Porto Alegre, RS

2007; Sociedade Brasileira de Geologia; Volume: 37; Issue: 4 Linguagem: Inglês

10.5327/rbg.v37i4.1302

2317-4889

Ruy Paulo Philipp, Verônica Di Benedetti,

Building materials and conservation

The Metropolitan Cathedral of Porto Alegre, in Rio Grande do Sul state, was designed by roman architect Joao Batista Giovenalle. This construction was developed in a long time between 1921 and 1986. The external building design has a match of granite and marble. In the body of the church was used rose equigranular granite extracted from a quarry located in Porto Alegre. Its imposing dome has covering of siliceous dolomitic marble drew out from quarry of Espirito Santo state. Originally the author of the project planned to recover this architectural element with copper, but this material was replaced by marble due to financial difficulties. However it wasn’t planned the necessary suitableness structures to perfect operation of this new material and resulted in a series of pathologies that damaged its aesthetic satisfactory design and the own building. The structural and materials problems identified in external dome resulted of degradations mechanisms related to physical, chemical and biologic weathering.