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| Faria,Douglas Lamounier; Cruz,Thiago Moreira; Dias,Matheus Cordazzo; Duarte,Paulo Junio; Mendes,Lourival Marin; Guimarães Junior,José Benedito. |
| ABSTRACT This work aimed to evaluate the physical and mechanical behavior of glued laminated timber (GLT) - glulam pieces of Hevea brasiliensis treated with chromed copper arsenate (CCA), chromed copper borate (CCB) and pyrethroid in the production of GLT. The pieces were produced using three wooden laminae with dimensions of 60 x 20 x 1200 mm, (width x thickness x length), joined with epoxy adhesive under 1.0 MPa pressure for 24h at room temperature. The rubberwood had an apparent density of 0.624 g cm-3, a value close to that of Eucalyptus grandis wood, a species traditionally used in the manufacture of GLT. Regarding the GLT parts, it was observed that the preservative treatment with CCA and CCB influenced negatively the values of the mechanical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adhesive wood bonding; Static bending; Delamination; Preservative treatment. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100236 |
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| Faria,Douglas Lamounier; Cruz,Thiago Moreira; Mesquita Júnior,Laércio; Duarte,Paulo Junio; Mendes,Lourival Marin; Guimarães Júnior,José Benedito. |
| ABSTRACT The glued laminated timber (glulam) is a composite material obtained from the bonding of wood laminae arranged with parallel fibers put together. The purpose of this paper was to evaluate the influence of the number of laminae on the mechanical behavior of glulam of Toona ciliata produced with vegetable-based polyurethane adhesive. The glulam beams were produced with lamellae in the dimensions of 6.0 x 1.5 x 120.0 cm, with 3 beams being made per treatment, which were structurally composed by 5, 7 and 9 laminae. The polyurethane adhesive based on castor oil was used, applying a grammage of 350 g m-². For the technological characterization of the wood the moisture in the dry base, bulk density, chemical characterization, compressive strength... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composite; Wood; Bond resistance; Flexural strength. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100236 |
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