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that the normalised ratio of dry/green surface area has potential to be used as a quantitative and comparative method (between/within species and treatments) to characterise collapse and the effectiveness of the reconditioning process. 1 MES1 MES2 MES3 MES4 Non reco. Reco. Non reco. Reco.Non reco. Reco. Non reco. Reco. 0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 Figure 47. Ratio of dry versus green non-reconditioned and reconditioned cross-sectional area – E. obliqua Table 57. Reconditioned and non-reconditioned cross-sectional area results – E. obliqua Dry area (cm2) Anr Ar non-reco. reco. 23.06 26.96 2.04 1.64 < 0.0001 24.21 26.36 2.34 1.77 < 0.0001 27.57 28.77 2.13 0.002 1.44 20.11 21.08 2.00 0.016 1.77 MES1 Green area (cm2) Ag non-reco. reco. Dry/green area ratio Anr/Ag Ar/Ag non-reco. reco. 0.70 0.81 0.061 0.046 < 0.0001 0.73 0.79 0.063 0.044 < 0.0001 0.83 0.87 0.059 0.038 < 0.0001 0.75 0.81 0.120 0.048 < 0.0001 Average 33.09 33.43 Stdev. 1.56 1.21 Sig. (p) 0.15 MES2 Average 33.26 33.55 Stdev. 1.30 1.95 Sig. (p) 0.85 MES3 Average 33.40 33.24 Stdev. 1.17 1.53 Sig. (p) 0.717 MES4 Average 26.46 26.03 Stdev. 1.09 1.35 Sig. (p) 0.242 Sawn orientation The majority of boards were a combination of quartersawn and transitionally sawn (Table 29). Quartersawing is the desired cutting pattern for this species as it generally produces boards with less surface checking and collapse induced degrade than backsawing. Table 58. Sawn orientation results – E. obliqua Sawn orientation (%) MES1 MES2 MES3 MES4 Quartersawn 50 62 50 48 Backsawn 5 0 1 0 Transitional 45 38 49 52 Evaluation of super–heated steam vacuum drying viability and development of a predictive drying model for Australian hardwood species – Final report 88 Dry/green area ratioPDF Image | Evaluation of super-heated steam vacuum drying
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