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Interim fungus cellar results, thermally modified Douglas fir and Cupressus lusitanica

By Rosie Sargent, June 2022.

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Executive summary

Durability screening using the AWPC accelerated field simulator (AFS) test (Australasian Wood Preservation Committee, 2015) has been underway for 4 years. The species tested are as follows:

Douglas-fir (SWP funded)

  • Two thermal modification treatments (220°C & 230°C) plus unmodified controls
  • Heartwood and sapwood stakelets tested separately
  • Commercial H3.2 CCA radiata pine included as treatment control

Cupressus lusitanica (Scion SSIF funded)

  • One thermal modification treatment (220°C) plus unmodified controls
  • Heartwood and sapwood stakelets tested separately
  • Totara heartwood included as naturally durable control

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