Finger-jointing of recycled wood – potential technology for improved circular use of wood

The material use of wood in long-lasting products can make a significant contribution to achieving climate goals. The longer the carbon bound in wood remains in the cycle, the greater the potential for emission-reduction becomes. Up to now, wood products have been made predominantly from fresh wood. Recently, efforts have been made to recycle the valuable raw material and the products made from it and to give the wood used a second life. Various technologies are being tested for recycling wood construction products, for example when an old building is demolished. The aim of this research was to finger-joint recycled structural timber and test whether it achieves a sufficiently high strength for reuse in the construction sector or for other applications.

Keywords: bending strength, finger-jointing, recycled wood

Authors

Hannes Stolze
Wood Biology and Wood Products Department, University of Goettingen, Germany

Kristina Bringedal Gedde
Norwegian Institute of Bioeconomy Research, Norway

Holger Militz
Wood Biology and Wood Products Department, University of Goettingen, Germany

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