Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Service Life Estimation of ACQ-treated Wood Based on Biodeterioration Resistance

  • Pang, Sung-Jun (Department of Forest Sciences, Research Institute of Agriculture and Life Sciences, College of Agriculture & Life Sciences, Seoul National University) ;
  • Hong, Jung-Pyo (Korea Forestry Promotion Institute, Timber Industry Support Team) ;
  • Lee, Jun-Jae (Department of Forest Sciences, Research Institute of Agriculture and Life Sciences, College of Agriculture & Life Sciences, Seoul National University) ;
  • Oh, Jung-Kwon (Department of Forest Sciences, Research Institute of Agriculture and Life Sciences, College of Agriculture & Life Sciences, Seoul National University)
  • Received : 2015.08.19
  • Accepted : 2015.09.08
  • Published : 2015.09.25
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Abstract

The aim of this study was to estimate the service life of alkaline copper quaternary (ACQ)-treated wood. The service life of preservative-treated wood was estimated by comparing a residual quantity of ACQ in wood with toxic threshold to fungi. Indoor and outdoor leaching tests were carried out in order to predict residual ACQ quantity within wood. As a result, the leaching ratio of ACQ from treated wood above ground via precipitation was 18.1% for 50 years. When the H4 treated wood, which is traditionally used in contact with the ground and fresh water, is used above-ground, the leaching ratio of ACQ for 50 years is 18.1% and the residual quantity of ACQ is $4.2kg/m^3$, which is higher than the toxic threshold of ACQ. Thus, the H4 treated wood used above-ground will be resistant to biodeterioration for at least 50 years.

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References

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