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Laboratory Evaluation of Natural Decay Resistance and Efficacy of CCA-Treated Rubberwood (Hevea brasiliensis Muell. Arg.)

  • Ismail Jusoh and D. Pascal Kamdem
Published/Copyright: June 1, 2005
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Holzforschung
From the journal Volume 55 Issue 3

Summary

Information on the natural decay resistance and efficacy of CCA-treated rubberwood is important for the development rubberwood industry. The purpose of this study was to determine the natural decay resistance of rubberwood and the efficacy of CCA-pressure treatment in order to explore a new opportunity for this abundant raw material. Natural decay resistance and efficacy of CCA was estimated using soil-block test according to AWPA E10-91. Cubes were exposed to six wood-decay fungi: two each from white, brown, and soft rot. The moisture content of test cubes exposed to Irpex lacteus and Trametes versicolor increased with weight loss increase, while that exposed to Gloeophyllum trabeum and Postia placenta decreased. After a 12-week incubation period the average weight loss by white rot and brown rot fungi was about 1.5 times higher than that of soft rot fungi. CCA retention of 4.1 kg/m3 reduced weight loss to between 8% and 10%, retention of 14.5 kg/m3 protected weight loss by all test fungi from exceeding 2%.

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Published Online: 2005-06-01
Published in Print: 2001-04-25

Copyright © 2001 by Walter de Gruyter GmbH & Co. KG

Articles in the same Issue

  1. Characterisation of Fungal Degraded Birch Wood by FTIR and Py-GC
  2. The Effects of Specific Volatile Organic Compounds Produced by Trichoderma Spp. on the Growth of Wood Decay Basidiomycetes
  3. Biological Control of Blue Stain in Pulpwood: Mechanisms of Control used by Phlebiopsis gigantea
  4. Cell-Wall-Associated Peroxidases from the Lignifying Xylem of Angiosperms and Gymnosperms: Monolignol Oxidation
  5. Laboratory Evaluation of Natural Decay Resistance and Efficacy of CCA-Treated Rubberwood (Hevea brasiliensis Muell. Arg.)
  6. Inhibition of the Photodiscoloration of Wood by Butyrylation
  7. Lipophilic Extractives from Eucalyptus globulus Pulp during Kraft Cooking Followed by TCF and ECF Bleaching
  8. Determination of Monosaccharide Composition of Eucalyptus globulus Wood by FTIR Spectroscopy
  9. Acetyl Group Distribution in Acetylated Wood Investigated by Microautoradiography
  10. Solid State NMR Analysis of β-13C-Enriched Lignocellulosic Material During Light-Induced Yellowing
  11. N-Hydroxy Compounds as New Internal Standards for the 31P-NMR Determination of Lignin Hydroxy Functional Groups
  12. 19F NMR Spectroscopy for the Quantitative Analysis of Carbonyl Groups in Lignins
  13. Reactions of the β-Aryl Ether Lignin Model 1-(4-Hydroxy-3-Methoxyphenyl)-2-(2-Methoxyphenoxy)-1-Propanol on Heating in Aqueous Solution
  14. Structural Analysis of Residual and Technical Lignins by 1H-13C Correlation 2D NMR-Spectroscopy
  15. Experimental Determination of Stiffness Variation Across Growth Rings in Picea abies
  16. Determination of the Material Property Variations Across the Growth Ring of Softwood for Use in a Heterogeneous Drying Model Part 1. Capillary Pressure,Tracheid Model and Absolute Permeability
  17. Surface Area Determinations in Woodpulps by Humidity Adsorption
  18. A Simple Testing Method for the Measurement of the Water Vapour Transmission of Coated Wood Longitudinal and Tangential to Grain Direction
  19. Literature Reports
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