Experimental investigations on adhesive free laminated oak timber beams and timber-to-timber joints assembled using thermo-mechanically compressed wood dowels



El-Houjeyri, I, Thi, VD, Oudjene, M, Khelifa, M, Rogaume, Y, Sotayo, A and Guan, Z ORCID: 0000-0002-6967-3508
(2019) Experimental investigations on adhesive free laminated oak timber beams and timber-to-timber joints assembled using thermo-mechanically compressed wood dowels. Construction and Building Materials, 222. 288 - 299.

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Abstract

© 2019 Elsevier Ltd This paper presents an experimental investigation on a novel adhesive free engineered Wood Products (AFEWPs) as an alternative to the conventional glued EWPs which have a high degree of petrochemicals. The research outcomes demonstrate the feasibility of using compressed wood dowels (CWD) as a joint element, to connect timber laminates and members as well as to substitute for adhesives and metallic fasteners. The paper describes the production of thermo-mechanically compressed wood dowels as well as the manufacturing of the dowelled timber specimens. The strength and stiffness properties of CWD are characterized based on three-point bending tests and compared to the values obtained from uncompressed wood specimens. After that, the paper discusses the relative mechanical performances of three-layer dowelled oak beams subjected to four-point bending, in comparison to their conventional glued counterparts. Finally, the paper shows results obtained from double shear push-out tests under both monotonic and cyclic loadings, using two wood species, namely spruce and oak. The obtained results show clearly the potential of thermo-mechanically compressed wood dowel, as a joint fastener, for load bearing capacity.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 08 Jul 2019 09:52
Last Modified: 21 Apr 2021 22:12
DOI: 10.1016/j.conbuildmat.2019.05.163
URI: https://livrepository.liverpool.ac.uk/id/eprint/3049112