Effect of Re-Wetting Treatment on the Dimensional Changes of Sugar Maple Wood

Authors

  • Nader Naderi
  • Roger E. Hernández

Keywords:

Swelling, shrinkage, re-wetting, sugar maple

Abstract

Air-dry wood samples are often simply re-wetted by direct immersion in order to raise the moisture content above the fiber saturation point. It is assumed that this treatment has no effect on the properties of wood and is equivalent to the green condition. A preliminary study was undertaken here to evaluate the influence of water re-saturation processes on the dimensional changes in sugar maple wood. Matched samples were subjected to three different full-water saturation treatments, from a four-step mild procedure to a one-step drastic procedure. Results showed that the re-wetting process had a significant effect on swelling and shrinkage of sugar maple wood.

References

Covington, S. A. 1965. The effect of drying and subsequent re-wetting on the strength properties of wood. J. Inst. Wood Sci. 15:51-54.nHernández, R. E. 1993. Influence of moisture sorption history on the swelling of sugar maple wood and some tropical hardwoods. Wood Sci. Technol. 27(5):337-345.nHernández, R. E., and M. Bizoň. 1994. Changes in shrinkage and tangential compression strength of sugar maple below and above the fiber saturation point. Wood Fiber Sci. 26(3):360-369.nPoliszko, S., W. Molinski, and J. Raczkowski. 1992. Acoustic emission of wood during swelling in water. J. Acoustic Emission 10(3/4): 107-111.nRice, R. W., and E. Peacock. 1992. Acoustic emission resulting from cyclic wetting of southern yellow pine. Holz Roh-Werkst. 50:304-307.nSkaar, C. 1988. Wood-water relations. Springer-Verlag, New York, NY.nStevens, W. C. 1963. The transverse shrinkage of wood. Forest Prod. J. 13(9):386-389.nStewart, H. A. 1989. Fixed knife-pressure-bar planing method reduces or eliminates subsurface damage. Forest Prod. J. 39(7/8):66-70.n

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Published

2007-06-19

Issue

Number 4 / October 1997

Section

Research Contributions

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