Enhancing the exterior performance of wood joined by linear and rotational welding

Pizzi, A.; Mansouri, H. R.; Leban, J. M.; Delmotte, L.; Pichelin, Frédéric (2011). Enhancing the exterior performance of wood joined by linear and rotational welding Journal of Adhesion Science and Technology, 25(19), pp. 2717-2730. Taylor & Francis Group 10.1163/016942411X556088

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Application of rosin, a wood derived, non-toxic, natural, inexpensive and easily and abundantly available natural material, to the wood faces to be joined by either linear vibration welding or rotational dowel welding has shown to greatly enhance the water resistance of welded wood joints. The method of application has been shown to have a marked effect on the results, with the application and drying of a diluted rosin solution to the wood surfaces before welding yielding the best results. The considerable improvement in water resistance does not still allow classification of the joints as fully exterior grade. However, dowel welding can now be used for protected exterior joints due to a combination of rosin waterproofing and joint geometry. Welded dowel joints holding together for longer than 455 days immersion in water indicate this to be the case. Rosin-treated linear vibration joints held together well in excess of 30 days but retained a measurable strength, in the best case, only up to 18 days water immersion. The wood anatomy and chemical reasons for the effect of rosin were determined by X-ray microdensitometry and CP-MAS 13C-NMR analysis.

Item Type:

Journal Article (Original Article)

Division/Institute:

School of Architecture, Wood and Civil Engineering
School of Architecture, Wood and Civil Engineering > Institute for Materials and Wood Technology
BFH Centres > BFH Centre for Wood - Resource and Material

Name:

Pizzi, A.;
Mansouri, H. R.;
Leban, J. M.;
Delmotte, L. and
Pichelin, Frédéric0000-0003-3856-6707

Subjects:

Q Science > Q Science (General)
T Technology > T Technology (General)
T Technology > TH Building construction
T Technology > TJ Mechanical engineering and machinery

ISSN:

0169-4243

Publisher:

Taylor & Francis Group

Submitter:

Christelle Ganne-Chédeville

Date Deposited:

21 Apr 2020 13:07

Last Modified:

21 Sep 2021 02:18

Publisher DOI:

10.1163/016942411X556088

Uncontrolled Keywords:

Dowel welding Exterior-grade Linear wood welding Rosin Water resistance Waterproofing additives Wood welding

URI:

https://arbor.bfh.ch/id/eprint/11278

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