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Wood Research and Technology

Holzforschung

Cellulose – Hemicelluloses – Lignin – Wood Extractives

Editor-in-Chief: Faix, Oskar

Editorial Board: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Burgert, Ingo / Rio, Jose C. / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Koch, Gerald / Lachenal, Dominique / Laine, Christiane / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Potthast, Antje / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Takano, Toshiyuki / Tamminen, Tarja / Theliander, Hans / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi

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1437-434X
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Volume 62, Issue 3

Issues

Assessment of biodeterioration for the screening of new wood preservatives: Calculation of stiffness loss in rapid decay testing

Simon R. Przewloka
  • 1University of Melbourne, School of Forest and Ecosystem Science, Water Street, Creswick, Victoria 3363, Australia
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/ Douglas M. Crawford
  • 2US Department of Agriculture (USDA), Forest Service, Forest Products Laboratory, One Gifford Pinchot Drive, Madison, WI 53726-2398, USA
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/ Douglas R. Rammer
  • 3US Department of Agriculture (USDA), Forest Service, Forest Products Laboratory, One Gifford Pinchot Drive, Madison, WI 53726-2398, USA
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/ Donald L. Buckner
  • 4Mississippi State University, Forest Products Department/Forest and Wildlife Research Centre, Box 9820, Mississippi State, MS 39762-9820, USA
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/ Bessie M. Woodward
  • 5US Department of Agriculture (USDA), Forest Service, Forest Products Laboratory, One Gifford Pinchot Drive, Madison, WI 53726-2398, USA
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/ Gan Li
  • 6Mississippi State University, Forest Products Department/Forest and Wildlife Research Centre, Box 9820, Mississippi State, MS 39762-9820, USA
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/ Darrel D. Nicholas
  • 7Mississippi State University, Forest Products Department/Forest and Wildlife Research Centre, Box 9820, Mississippi State, MS 39762-9820, USA
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Published Online: 2007-12-10 | DOI: https://doi.org/10.1515/HF.2008.024

Abstract

Demand for the development of environmentally benign wood preservatives has increased significantly. To reduce the evaluation time of prospective candidates, reliable accelerated decay methodologies are necessary for laboratory screening of potential preservatives. Ongoing research at Mississippi State University has focused upon utilizing custom built equipment to measure stiffness losses in wood wafers after 4 weeks of fungal exposure as opposed to mass losses in blocks after 12 weeks. Stiffness loss as a measure to quantify the extent of biodeterioration may allow detection of incipient decay. The resistance of untreated and treated southern yellow pine and radiata pine (Pinus radiata) sapwood wafers to biodeterioration by brown rot (Neolentinus lepideus, Gloeophyllum trabeum and Postia placenta) and white rot (Trametes versicolor and Irpex lacteus) fungi was investigated by measuring stiffness. From the data collected percentage stiffness losses were calculated based upon modulus of elasticity. It is a potentially accurate alternative to the “secant modulus” at a deformation equal to 5% of the specimen height calculation generally performed.

Keywords: accelerated screening methodology; biodeterioration; compression/crushing test; decay fungi; Pinus radiata; southern yellow pine; stiffness loss; wood preservatives

About the article

Corresponding author. University of Melbourne, School of Forest and Ecosystem Science, Water Street, Creswick, Victoria 3363, Australia


Received: 2007-05-16

Accepted: 2007-10-08

Published Online: 2007-12-10

Published Online: 2007-12-10

Published in Print: 2008-05-01


Citation Information: Holzforschung, Volume 62, Issue 3, Pages 270–276, ISSN (Online) 1437434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/HF.2008.024.

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