Development of an accelerated soil-contact decay test
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Gan Li
Abstract
An accelerated method to evaluate wood preservatives for soil contact was explored using thin (4 mm) pine sticks in small decay cups containing non-sterile soil and wood compost-amended soil. The extent of wood decay was measured by monitoring changes in the bending elasticity (MOE) of the test samples, which was found to be a sensitive measure of the decay extent for both chromated copper arsenate (CCA)- and copper naphthenate (CuNap)-treated wood, and untreated wood. The decay rate was rapid, with significant decay detected in untreated wood after only 2 months of exposure. Decay in both treated and untreated wood samples was observed sooner when the soil was amended with wood compost. The compost-amended soil also gave significantly higher copper depletion for CCA- but not CuNap-treated wood. Although the results from this test should not be extrapolated to predict field test performance, it does appear to be applicable for rapid comparison of the performance of new and established preservative systems.
References
Cartwright, K., Findley, W., Chaplin, C., Campbell, W. (1931) The effect of progressive decay by Trametes serialis fr. on the mechanical strength of wood of Sitka spruce. Forest Prod. Res. Bull. No. 11.Search in Google Scholar
Cooper, P.A., Ung, Y.T. (1992) Leaching of CCA-C from jack pine sapwood in compost. For. Prod. J.42:57–59.Search in Google Scholar
Crawford, D.M. (1994) Detection of incipient decay by soft-rot fungi by changes in wood modulus of elasticity. Masters thesis, Mississippi State University.Search in Google Scholar
Daniel, G.F., Nilsson, T., Singh, A.P. (1987) Degradation of lignocellulosics by unique tunnel-forming bacteria. Can. J. Microbiol.33:943–948.10.1139/m87-166Search in Google Scholar
Edlund, M.-L., Nilsson, T. (1999) Performance of copper and non-copper based wood preservatives in terrestrial microcosms. Holzforschung53:369–375.10.1515/HF.1999.061Search in Google Scholar
Gray, M.S. (1986) Effect of soil type and moisture content on soft rot testing. Document IRG/WP/2270. International Research Group on Wood Protection, Stockholm, Sweden.Search in Google Scholar
Kazemi, S.M., Murphy, R.J., Creffield, J.W., Howick, C.D. (2001) Influence of CCA and TnBTO on wood decay, under different oxygen levels and various initial moisture content. Document IRG/WP/01-10415. International Research Group on Wood Protection, Stockholm, Sweden.Search in Google Scholar
Kennedy, R.W. (1958) Strength retention in wood decayed to small weight losses. For. Prod. J.8:308–314.Search in Google Scholar
Nicholas, D.D. (1988) The influence of formulations on wood preservative performance. Proc. Am. Wood Preserv. Assoc.84:178–184.Search in Google Scholar
Nicholas, D.D., Archer, K.J. (1994) Soil beds for testing wood preservatives. In: Proceedings of Wood Preservation in the 90's and beyond. Document No. 7308. Forest Products Service, Madison, WI.Search in Google Scholar
Nicholas, D.D., Borazjani, H., Schultz, T.P. (2004) Accelerated laboratory soil contact decay test using soil amended with composted wood. Document IRG/WP 04-20284. International Research Group on Wood Protection, Stockholm, Sweden.Search in Google Scholar
Polmen, J.E., Michon, S.G.L., Militz, H. (1991) Accelerated wood decay in soil-bed test under greenhouse conditions compared with a stake test under field conditions. Document IRG/WP/2384. International Research Group on Wood Protection, Stockholm, Sweden.Search in Google Scholar
Schultz, T.P., Nicholas, D.D., Pettry, D.E. (2002) Depletion of CCA-C from ground-contact wood: Results from two field sites with significantly different soils. Holzforschung56:125–129.10.1515/HF.2002.021Search in Google Scholar
Schultz, T.P., Nicholas, D.D., Kirker, G.T., Prewitt, M.L., Diehl, S.L. (2006) Effect of the antioxidant BHT on reducing depletion of chlorothalonil in treated wood after 5 months of ground-contact exposure. Int. Biodeter. Biodegrad.57:45–50.10.1016/j.ibiod.2005.11.001Search in Google Scholar
Wallace, D.F., Cook, S.R., Dickinson, D.J. (2007) The role of non-decay microorganisms in the degradation of organic wood preservatives. In: Wood Preservation and Molds in Homes, ACS Symposium Series. Eds. Schultz, T.P., Nicholas, D.D. In press.10.1021/bk-2008-0982.ch018Search in Google Scholar
Wang, J.-H., Nicholas, D.D., Sites, L.S., Pettry, D.E. (1998) Effect of soil chemistry and physical properties on wood preservative leaching. Document IRG/WP/98-50111. International Research Group on Wood Protection, Stockholm, Sweden.Search in Google Scholar
Wilcox, W.W. (1978) Review of literature on the effect of early stages of decay on wood strength. Wood Fiber9:252–257.Search in Google Scholar
Williams, G.R., Rudolph, D., Hedley, M.E., Drysdale, J.A., Fox, R.F. (1994) Observations on the performance of copper-based wood preservatives in fungal cellar (soil-bed) tests. Document IRG/WP/94-20047. International Research Group on Wood Protection, Stockholm, Sweden.Search in Google Scholar
©2007 by Walter de Gruyter Berlin New York
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Articles in the same Issue
- Characterization of thin water layers in pulp by tritium exchange. Part 1: Methods development
- Characterization of thin water layers in pulp by tritium exchange. Part 2: Effect of refining on water absorption
- Characterizing wood fiber and particle length with a mixture distribution and a segmented distribution
- Effect of photolysis on 17th/18th century paper
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- A novel simple route to wood acetylation by transesterification with vinyl acetate
- Formation and properties of nanocomposites made up from solid aspen wood, melamine-urea-formaldehyde, and clay
- Ellagitannins from Portuguese oak wood (Quercus pyrenaica Willd.) used in cooperage: influence of geographical origin, coarseness of the grain and toasting level
- Epimeric phenylpropanoid glycosides from inner bark of Paulownia coreana Uyeki
- Lipid and lignin composition of woods from different eucalypt species
- A hysteresis model suitable for numerical simulation of moisture content in wood
- Simple estimation of critical stress intensity factors of wood by tests with double cantilever beam and three-point end-notched flexure
- Screening fungi tolerant to Western red cedar (Thuja plicata Donn) extractives. Part 1. Mild extraction by ultrasonication and quantification of extractives by reverse-phase HPLC
- Screening fungi tolerant to Western red cedar (Thuja plicata Donn) extractives. Part 2. Development of a feeder strip assay
- Contribution of hardness to the natural resistance of a range of wood species to attack by the marine borer Limnoria
- Biodeterioration of treated Pinus radiata timber by Australian decay fungi and the termite Coptotermes acinaciformis in laboratory bioassays and field conditions
- Development of an accelerated soil-contact decay test
- Obituary Dr. Bo Hortling (1942–2006)
