Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): R.L. Geimer; E.W. Price
    Date: 1978
    Source: Structural flakeboard from forest residues : proceedings of a symposium presented by the USDA Forest Service, June 6-8, 1978, Kansas City, Mo. Washington, DC : U.S. Dept. of Agriculture, Forest Service, 1978. Gen. Tech. Rep. WO-5: Pages 69-80
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (605 KB)

    Description

    Flake geometry, flake quality, flake alignment, average density, density gradients, layer thicknesses, and resin content were factors considered in determining the final construction details on structural flakeboards made from 1) western softwoods and 2) southern hardwood residues. After making compromises between board properties, a three-layer design was recommended for both board types. Long, thin face flakes enhanced bending properties while thick core flakes maximized internal bond strengths. The lower compaction ratio associated with high-density hardwood species restricted the range of the variables used, as compared to those considered by the softwood board. The use of high quality surface flakes and a surface water spray were other methods used to improve the performance of the hardwood board. Alignment of face flakes substantially increased the bending properties in the aligned direction for both board types. Being bound on one hand by economics and on the other by strength and durability requirements, a liquid phenolic resin content of 5 to 6 percent was used for the binder. By carefully choosing construction variables and fabrication techniques, acceptable panels from forest and mill residues were recommended for structural application.

    Publication Notes

    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Geimer, R.L.; Price, E.W. 1978. Construction variables considered in fabrication of a structural flakeboard. Structural flakeboard from forest residues : proceedings of a symposium presented by the USDA Forest Service, June 6-8, 1978, Kansas City, Mo. Washington, DC : U.S. Dept. of Agriculture, Forest Service, 1978. Gen. Tech. Rep. WO-5: Pages 69-80

    Keywords

    Flakeboard, wood residues, flake geometry, flake quality, flake alignment, average density, density gradients, layer thicknesses, resin content

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/21048