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The appropriateness of central one-ninth or core retentions as a means of demonstrating penetration compliance
2023 - IRG/WP 23-40976
Treatment quality is in general terms dependent upon the preservative retention, and how the preservative is distributed throughout the cross-section of the treated article in question, i.e. the penetration of the preservative. Of these two fundamental qualities that are intrinsically linked to treatment quality, penetration is in general terms the most subjective. The determination of retention i...
D Humphfrey, B Skewes
Preservative properties of boron-treated paulownia wood
2024 - IRG/WP 24-20729
This research was performed to investigate the preservative retention properties of paulownia wood treated using boric acid/borax at mass ratio of 1:1.8. Different portion of paulownia wood (top, middle, bottom) were used as a sample throughout of this study. In the treatment process, the paulownia wood was dipped in the 1% boric acid/borax solution for 1, 24, 72, 120 and 240 hours to achieve requ...
T Khadiran, M A M Abdullah, S Lipeh
Levels of chromated copper arsenate in aged radiata pine vineyard posts
2024 - IRG/WP 24-50389
At the Centre for Timber Durability and Design Life, Australia a cooperative project is underway with Forest and Wood Products Australia, supported by a consortium of timber producers, chemical suppliers and timber users to identify alternative pathways for treated timber and EWP’s. Under this initiative, we are focusing on establishing the current and forecasting future volumes of treated timbe...
T Singh, T Yi, P Mitchell, J Norton