Decorative renders simulating stone of middle 20th century in the region of Lisbon

Rosário Veiga, António Santos Silva, Cláudia Martinho, Paulina Faria

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Abstract

Housing and public urban buildings of the middle 20th century period, in Portugal, are characterized by a sober, rather severe, architectural and constructive design, known as “Estado Novo” period. In the region of Lisbon, the façades of many of those buildings are covered with a very durable unpainted decorative type of render, called “marmorite”. Considering that cementitious binders were already often used in that period, both in structural elements and in coatings, and due to the darkening effect of fungus, soiling and pollution, there was a generalized belief that marmorite renders were cement-based mortars. As a consequence, repair interventions used materials and techniques chosen for cementitious renders. However, the characterization of the marmorite render of the National Laboratory for Civil Engineering main building, in Lisbon, revealed that the render was composed by air lime, limestone and marble. Later, an experimental characterization campaign of samples of marmorite renders of 20 other buildings in the region of Lisbon revealed that they were generally composed by air lime, sometimes coloured with an inorganic pigment, and mainly limestone and marble aggregates of different colours selected to obtain an aesthetic effect.
Original languageEnglish
Title of host publicationRILEM Pro 130
EditorsJosé Ignacio Álvarez, José María Fernández, Íñigo Navarro, Adrián Durán, Rafael Sirera
Place of PublicationFrance
PublisherRILEM Publications SARL
Pages931-943
Number of pages13
ISBN (Electronic)978-2-35158-222-0
ISBN (Print)978-2-35158-221-3
Publication statusPublished - 2019
Event5th Historic Mortars Conference - Universidad de Navarra, Pamplona, Spain
Duration: 19 Jun 201921 Jun 2019
Conference number: 5
https://www.unav.edu/en/web/historic-mortars-conference

Publication series

NameRILEM Proceedings
PublisherRILEM Publications SARL
Volume130

Conference

Conference5th Historic Mortars Conference
Abbreviated titleHMC2019
CountrySpain
CityPamplona
Period19/06/1921/06/19
Internet address

Keywords

  • Decorative Render
  • Marble Aggregate
  • Marmorite
  • Construction Technology

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