Skip to main content
SpringerLink
Log in

Compression control and its significance in the manufacture and effects on properties of poplar LVL

  • Originals
  • Published:
Wood Science and Technology Aims and scope Submit manuscript

Summary

In order to control the compression effectively, the main processing parameters for hot-pressing of poplar LVL were investigated in this study. Results from an orthogonal experiment show qualitatively that compression of poplar LVL is influenced by pressing pressure and moisture content of the veneers. High press pressure and veneer moisture content lead to high compression during hot pressing. It is shown that compression has significant effects on modulus of elasticity, modulus of rupture, specific gravity and thickness swelling of poplar LVL. Modulus of elasticity, modulus of rupture and specific gravity appear to be directly proportional to compression within the compression range of 5% to 20%. Horizontal shear strength results indicate that, due to inadequate contact, proper glue bond may not be achieved between veneers of LVL with low compression. Thickness swelling appears not sensitive to compression between the compression range of 4% to 10%.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • ASTM. 1991: Methods of testing small clear specimens of timber. ASTM D143. American Society of Testing and Materials. Philadelphia, PA

    Google Scholar 

  • Currier, R. A. 1960: Compression of white-pocket veneer in hot-pressed douglas-fir plywood. Forest Prod. J. 10(8): 409–415

    Google Scholar 

  • Currier, R. A. 1963: Compressibility and bond quality of western softwood veneers. Forest Prod. J. 13(2): 71–80

    Google Scholar 

  • MacDonald, M. D. 1951: Compression of douglas fir veneer during pressing. The Timberman. 52(4): 98–102

    Google Scholar 

  • Wellons, J. D.; Krahmer, R. L.; Sandoe, M. D.; Jokerst, R. W. 1983: Thickness loss in hotpressed plywood. Forest Prod. J. 33(1): 27–3

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Forestry Industry, Southwest Forestry College, Kunming, Yunnan, China

    H. J. Zhang

  2. Department of Forest Engineering, University of New Brunswick, Fredericton, New Brunswick, Canada

    Y. H. Chui

  3. Department of Forest Resources, University of New Brunswick, Fredericton, New Brunswick, Canada

    M. H. Schneider

Authors
  1. H. J. Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Y. H. Chui
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. H. Schneider
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

The authors wish to acknowledge the financial support from the Natural Sciences and Engineering Research Council of Canada to this study, which was carried out when the first author was a visiting scientist at Wood Science and Technology Centre, University of New Brunswick, Canada. The veneers and adhesive used in this study were provided by Temlam Inc., Ville-Marie, Quebec. Their contribution is gratefully acknowledged.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhang, H.J., Chui, Y.H. & Schneider, M.H. Compression control and its significance in the manufacture and effects on properties of poplar LVL. Wood Sci.Technol. 28, 285–290 (1994). https://doi.org/10.1007/BF00204214

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00204214

Keywords

Search

Navigation