The Adhesion Performance in Green-Glued Finger Joints Using Different Wood Ring Orientations

Gonzalo Rodríguez-Grau, Pierre-Louis Cordonnier, Benjamín Navarrete, Claudio Montero, Claudia Alvarado, Régis Pommier, Víctor Rosales and Carlos Galarce ()
Additional contact information
Gonzalo Rodríguez-Grau: School of Civil Construction, Faculty of Engineering, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
Pierre-Louis Cordonnier: Ecole Nationale Supérieure d’arts et Métiers (ENSAM), 151 Boulevard de L’hôpital, 75013 Paris, France
Benjamín Navarrete: School of Civil Construction, Faculty of Engineering, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
Claudio Montero: Adhesives & Composites Material Laboratory, Universidad del Bío-Bío, Concepción 4051381, Chile
Claudia Alvarado: Centro de Investigación y Desarrollo en Ciencias Aeroespaciales, Fuerza Aérea de Chile, Av. José Miguel Carrera 11087, Santiago 8020744, Chile
Régis Pommier: Institut de Mécanique et D’Ingienierie (I2M), Arts et Métiers, University Bordeaux, UMR 5295, 351 Cours de la Libération, 33400 Talence, France
Víctor Rosales: Centro Nacional de Excelencia para la Industria de la Madera (CENAMAD), Universidad del Bío-Bío, Concepción 4051381, Chile
Carlos Galarce: School of Civil Construction, Faculty of Engineering, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile

Sustainability, 2024, vol. 16, issue 16, 1-14

Abstract: Structural lumber is designed to meet the technical standards that ensure safety, cost-effectiveness, and sustainability. However, some tree species face limitations in their growth, which restricts their widespread use. An example of this is Nothofagus alpina , which has excellent mechanical properties but is not utilized much due to the challenges in extracting its timber and poor utilization, mainly because of the length of the wood. There is little information concerned with the uses and better management of small pieces using Nothofagus species, but it is still insufficient. This study investigates the adhesion performance of green-glued finger joints with varying wood ring orientations and moisture contents ranging from 21% to 25% using Nothofagus alpina . The primary aim is to assess how ring orientation and wet timber affect the green gluing process for creating larger wood pieces than sawn wood. The resulting products could meet the standards for wood serviceability number three for native Chilean wood. The findings indicate that finger joint performance improves with higher timber moisture levels. However, the orientation of the wood fibers did not significantly affect the performance under the tested conditions. It is important to note that this effect may become more significant near the fiber saturation point. These findings emphasize the need for a detailed protocol on the green gluing technique for Nothofagus alpina and the associated drying and surface processes in finger joint construction.

Keywords: Nothofagus alpina; green gluing; finger joints (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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