Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4772
Título: Consolidating preservative-treated wood: Combined mechanical performance of boron and polymeric products in wood degraded by Coniophora puteana
Autor: Henriques, Maria Dulce e Silva Franco
Brito, Jorge Manuel Caliço Lopes de
Duarte, Sónia
Nunes, Lina
Palavras-chave: Consolidation
Mechanical Performance
Maritime Pine
Wood Rot
Biocide Treatment
Data: Jan-2014
Editora: Elsevier France-Editions Scientifiques Medicales Elsevier
Citação: HENRIQUES, Maria Dulce e Silva Franco; BRITO, Jorge Manuel Caliço Lopes de; DUARTE, Sónia; NUNES, Lina – Consolidating preservative-treated wood: combined mechanical performance of boron and polymeric products in wood degraded by coniophora puteana. Journal of Cultural Heritage. ISSN: 1296-2074. Vol. 15, nr. 1 (2014), p. 10-17.
Resumo: When timber elements in heritage buildings are moderately degraded by fungi and assuming underlying moisture problems have been solved, two actions can be taken: i) use a biocide to stop fungal activity; ii) consolidate the degraded elements so that the timber keeps on fulfilling its structural and decorative functions. The aim of this work is to investigate the mechanical performance of maritime pine wood degraded by fungi after being treated with a biocide followed by impregnation with a polymer product. Three commercially available products were used: a boron water-based biocide, an acrylic consolidant and an epoxy-based consolidant. Treated and consolidated specimens were subjected to mechanical tests: axial compression test (NP 618), static surface hardness (ISO 3350) and bending test (NP 619). Sets of replicates were subjected to an evaporation ageing test (EN 73) after application of the products and also tested for mechanical behaviour. An increase in mechanical strength was observed for both consolidants with no significant influence from the previous use of biocide product. The specimens subjected to ageing showed a slightly better general mechanical performance.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4772
DOI: 10.1016/j.culher.2012.11.008
ISSN: 1296-2074
1778-3674
Aparece nas colecções:ISEL - Eng. Civil - Artigos

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