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Utilization of Pressure Treated Lumber in Cross Laminated Timber Manufacture and its Impact on Bondline
2022 - IRG/WP 22-40953
Mass timber building construction is increasing dramatically across North America which presents challenges to these structures not seen in Northern Europe. Large parts of the United States harbor termites and existing mass timber building technologies that rely solely on moisture exclusion to increase durability are insufficient in these areas. The successful expansion of mass timber construction...
G Presley, C Wainscott, J Valenti, S Noble
Identifying compatible waterborne timber preservatives and fire retardants for use in a VPI system: a practical approach
2023 - IRG/WP 23-30796
To enhance the use and suitability of timber in all applications in both exterior and interior settings, timber typically needs to be treated with a preservative and/or a fire retardant chemical. Combining fire retardants with preservatives into a single treatment process has been a long-term aim of researchers in the timber preservative industry because of the significant logistic and economic ad...
R Robinson, S Meldrum
Non-vacuum/pressure ACQ treatment
2023 - IRG/WP 23-40971
Many developing countries are located in sub-tropical or tropical regions where rapid wood deterioration results in early failure of many structures. Whilst preservative treatment would help to reduce these losses and extend the forest resource commercial vacuum pressure treatment systems are often too expensive. The use of lower technology treatment systems, while not as quick as vacuum pressure ...
J Norton
Elevated pressure hybrid wood modification: Synergistic effects on durability performance
2024 - IRG/WP 24-20725
The combination of different wood modification technologies to obtain improved performance is increasingly receiving attention in research. In this study, Scots Pine was impregnated with furfuryl alcohol (FFA) in pure aqueous 20, 40 and 60% solution strength without adding any catalyst. In a second step, the FFA was polymerized while simultaneously performing thermal modification in a closed syste...
P Klaas, D Jones