Review of state of the art of dowel laminated timber members and densified wood materials as sustainable engineered wood products for construction and building applications

Adeayo Sotayo, Daniel Bradley, Michael Bather, Pooya Sareh, Marc Oudjene, Imane El-Houjeyri, Annette M. Harte, Sameer Mehra, Conan O'Ceallaigh, Peer Haller, Siavash Namari, Ahmed Makradi, Salim Belouettar, Lyazid Bouhala, François Deneufbourg, Zhongwei Guan

Research output: Contribution to journalArticlepeer-review

Abstract

Engineered Wood Products (EWPs) are increasingly being used as construction and building materials. However, the predominant use of petroleum-based adhesives in EWPs contributes to the release of toxic gases (e.g. Volatile Organic Compounds (VOCs) and formaldehyde) which are harmful to the environment. Also, the use of adhesives in EWPs affects their end-of-life disposal, reusability and recyclability. This paper focusses on dowel laminated timber members and densified wood materials, which are adhesive free and sustainable alternatives to commonly used EWPs (e.g. glulam and CLT). The improved mechanical properties and tight fitting due to spring-back of densified wood support their use as sustainable alternatives to hardwood fasteners to overcome their disadvantages such as loss of stiffness over time and dimensional instability. This approach would also contribute to the uptake of dowel laminated timber members and densified wood materials for more diverse and advanced structural applications and subsequently yield both environmental and economic benefits.

Original languageEnglish
Article number100004
JournalDevelopments in the Built Environment
Volume1
DOIs
Publication statusPublished - Feb 2020
Externally publishedYes

Keywords

  • Densified wood
  • Dowel laminated timber
  • Engineered wood products
  • Sustainability

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