Avaliação do envelhecimento natural e de tratamentos superficiais ecológicos em rebocos de terra

Translated title of the contribution: Assessment of natural aging and ecological surface treatments in earth renders

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Abstract

In conservation, earth renders can be used as sacrificial coatings. However, earth presents vulnerability when in contact with water. The application of ecological surface treatments on earth renders can be of great relevance, ensuring their durability while increasing ecoefficiency and extending its range of applications. The behaviour of a ready-mixed earth render applied insitu, on adobe and concrete block masonry experimental walls exposed outdoors with protection, and under controlled laboratory conditions, on hollow bricks, was evaluated after four years. Several superficial treatments were applied on the renders: linseed oil, mucilage of aloe vera and pasta and rice cooking water. The renders were characterized by non-destructive tests. The surface treatment with linseed oil presents good results and improves the durability of the earth render, giving it adequate protection against natural degradation.

Translated title of the contributionAssessment of natural aging and ecological surface treatments in earth renders
Original languagePortuguese
Pages (from-to)31-44
Number of pages14
JournalConservar Património
Volume35
DOIs
Publication statusPublished - 15 Apr 2021

Keywords

  • Clayish earth
  • Coating
  • Durability
  • In situ characterisation
  • Mortar
  • Natural exposure

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