Use of synthetic fibers in a glueline to increase resistance to

Details Use of synthetic fibers in a glueline to increase resistance to Use of synthetic fibers in a glueline to increase resistance to

1996-03-12

1998-04-28

Wilson, Donald R.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

4282951, 4282954, 4282991, 4282994, 4282997, 4283014, 4285371, 527294, 527307, B32B 508, B32B 516, B32B 2108, E04C 312

Patent

active

057442282

ABSTRACT:
A high strength, high modulus fiber is applied to uncured adhesive in the glueline of a laminar wood beam as an anti-sag agent and for improved shear strength, creep resistance, and gapability. In one embodiment, discontinuous fibers are evenly applied over the adhesive at approximately 0.25 to 1.35 wt % fiber. The applied fibers are chopped fibers of aramid, carbon, glass, or other high strength, high modulus fiber and are applied in lengths of approximately 0.025 to 2.54 centimeters. In another embodiment, discontinuous fibers are used as an additive to a resin matrix for reconstituted fiber products to control dimensional change. In a third embodiment, continuous fibers are used in the glueline in a pretensioned or an untensioned way to improve shear resistance, creep resistance, and strength.

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Tingley, "Reinforced Glued-Laminated Wood Beams." Sep. 1988.

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