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| Title | Publication | Publish Year |
|---|---|---|
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Slope of Grain in Engineered Wood
One of the most important characteristics in a board is the slope of grain. This feature of a wood member influences practically all of its physical and mechanical properties. Grain […]
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Forest Products Journal | 1954 |
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Snow Loads and Strength of Small Roofs in Canada
Two types of conventional roof frames were tested by short-term loading and long-term loading. The conventional roof frames were tested both on fixed-end supports and on roller supports. The W-trusses […]
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Forest Products Journal | 1964 |
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Some Aspects of Viscoelastic Behavior of Hardboard
Twenty-seven specimens of 1/4-inch-thick dry-processed hardboard and 9 specimens were tested in creep. The dry-processed board was made by hot pressing fibers of low moisture content, while the wet-processed was […]
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Forest Products Journal | 1964 |
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Some Characteristics of Young Plantation-Grown Red Pine in Relation to Properties of the Wood
Young red pines growing in plantations were found to have wood of lower average specific gravity than older trees from natural stands. Specific gravity increased with percent of summerwood, which […]
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Forest Products Journal | 1952 |
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Some Comparative Characteristics of Second-Growth and Old-Growth Redwood
Old-growth and second-growth redwood are compared with respect to specific gravity, strength, shrinkage, and other properties. Silvicultural practices can aid in producing high-quality timber on the shorter rotations. Most old-growth […]
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Forest Products Journal | 1951 |
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Some Effects of Bacterial Action on Rotary-Cut Southern Pine Veneer
The U.S. Forest Products Laboratory observed differences in veneer quality from disks of southern pine depending upon the storage history of the pine disks. A study was carried out to […]
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Forest Products Journal | 1966 |
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Some Factors Affecting Resin Efficiency in Flake Board
Resin coverage on flakes, atomization; and interparticle adhesion were investigated. Flake-to-flake bonding appeared to be adequate, but some of the resin evidently was functioning inefficiently. Flakes and resin were mixed […]
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Forest Products Journal | 1961 |
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Some Factors Affecting the Toughness of White Ash
Six white ash (Fraxinus americana L.) trees from three central eastern Maine locations were sampled for toughness testing. The data were grouped by rate of growth (three classes), mode of […]
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Forest Products Journal | 1970 |
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Some Mechanical Properties of Aspen Wetwood
Green wetwood samples from five quaking aspen trees cut at the Cloquet Forest Research Center were tested in compression parallel to the grain and in bending. The compression specimen size […]
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Forest Products Journal | 1966 |
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Some Mechanical Properties of Impregnated Bark Board
Some of the compressive and flexural properties of bark-board and polymer impregnated barkboard have been investigated. The barkboard was comprised of hammermilled red oak bark and (6%) phenolic resin. Two […]
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Forest Products Journal | 1977 |
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Some Mechanical Properties of Wood Fibers in Tension
Using an electrical-mechanical system for measuring force and deformation, it was possible to determine the load-deformation properties of single fibers of wood. The data from tests of fibers of ten […]
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Forest Products Journal | 1960 |
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Some Non-Destructive Tests for Wood
Non-destructive methods of testing wood were reviewed. Non-destructive testing was defined as the evaluation of materials without damage. One of the first and most limited tests of this type to […]
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Forest Products Journal | 1954 |
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Some Performance Characteristics of Wood Joist Floor Panels
Floor panels were constructed with 2 by 8-inch joists and with coverings of plywood and particleboard, both alone and in combination. For some panels, adhesive was used to attach coverings […]
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Forest Products Journal | 1975 |
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Some Problems in the Design and Performance of Laminated Wood Trusses
For this study the Forest Products Laboratory of Canada designed a laminated arch for use inside a building 47 feet 6 inches wide, 21 feet 6 inches high at the […]
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Forest Products Journal | 1949 |
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Some Strength Properties of Aspen Wood Affected By Varying Degrees of Heart Rot
Trembling asp.en (Populus tremuloides Michx.) is an abundant yet underutilized species in Alberta, Canada. Prevalent heart rot by Fomes igniarius contributes to the low usage. Twenty specimens each from clear, […]
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Forest Products Journal | 1985 |
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Some Studies of Sawdust-Synthetic Resin Combinations for Hardboard Manufacture
The development of an experimental technique for the laboratory production of small test specimens of sawdust-synthetic resin boards using untreated sawdust and dry synthetic resin powders is described and the […]
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Forest Products Journal | 1950 |
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Some Variables Affecting Microtensile Strength of Douglas-Fir
Tension parallel to the grain tests were conducted on green specimens of Douglas-fir 0.003 inch by 0.06 inch by 1.75 inches. Strength ranged from 3165 psi to 9243 psi with […]
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Forest Products Journal | 1962 |
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Species and Core Joint Design Affect Tensile Strength and Stiffness of Composite Truss Lumber
Composite truss lumber 2 by 4’s made with southern pine veneer and sweetgum veneer were tested in tension. Veneer species, type of core joint, and core orientation index significantly affected […]
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Forest Products Journal | 1986 |
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Species Response to Prestress in Curved Laminated Wood Beams
Based on tests of small, clear curved beams, this paper presents curvature-stress factors for several species with respect to the ratio of individual lamination thickness to radius of curvature. Individual […]
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Forest Products Journal | 1968 |
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Spent Sulfite Liquor Binder for Eastern Spruce Flakeboard
An investigation was conducted to evaluate the performance of a spent sulfite liquor binder in eastern spruce flakeboard and to determine the effects of board construction and of adhesive particle […]
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Forest Products Journal | 1978 |
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Spruce Budworm Killed Balsam Fir as a Raw Material for Flakeboard and Waferboard
Laboratory phenol-formaldehyde (PF) bonded waferboards (3 percent powdered PF) and flakeboards (6 percent liquid PF) were manufactured from 100 percent healthy balsam fir; 100 percent 3-month, 1-year, and 2-year-dead balsam […]
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Forest Products Journal | 1984 |
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Stability and Bracing of Parallel-Chord Wood Trusses
Designers usually employ conservative methods of determining truss bracing requirements. If a failure should occur, the presence or absence of specified bracing is often at issue. If bracing is less […]
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Forest Products Journal | 1986 |
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Stacking Method for Long-Term Concentrated Load Testing of Floor Panels
Few data have been published on long-term deflection of full-size floor panels, partly because of the considerable space required for testing even a few sections. A stacking method is proposed […]
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Forest Products Journal | 1980 |
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State-Of-The-Art: Current Statistical Methods for Estimating Lumber Properties By Proofloading
This paper explores from a statistical perspective the nature of current proofloading research involving lumber. The task of determining performance of the many grades, sizes, and species of lumber by […]
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Forest Products Journal | 1980 |
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Static and Dynamic Properties of Glued Wood-Joist Floors
Tests were conducted on four wood-joist floors to determine the effect that gluing plywood subfloor to the joists with an elastomeric adhesive has on static strength and stiffness, vibration frequency, […]
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Forest Products Journal | 1971 |