University of Alaska

Chris Arend
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Description: 

The new science building at the University of Alaska at Anchorage featured an extensive “cloud” ceiling made of Plyboo edge grain amber plywood, floating over the astronomy department’s new planetarium drum.

Pictured here is a full view of the massive drum. Plyboo edge grain amber plywood was also used for the benches underneath it!

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Industry: 
Educational
Location: 
Anchorage, Alaska
Materials: 
Amber Edge Grain
LEED Credits: 
Possible LEED Credits: IEQc4.4: Low Emitting Materials MRc6: Rapidly Renewable Materials MRc7: Certified Wood CA Section 01350: Passed Other: No added urea formaldehyde

Physical / Mechanical Properties - Edge Grain and Flat Grain Bamboo Plywood

ASTM E84: Surface Burning

Class C

ASTM D1037 Dimensional Stability: 50% to 90%RH

  • Linear Expansion (AR to 20% RH):
    • Flat Grain (3-ply): Parallel -0.09% / Perpendicular -0.07%
    • Edge Grain (1-ply): Parallel -0.08% / Perpendicular -0.04%
  • Thickness Swell (50%RH to 80% RH):
    • Flat Grain (3-ply): 0.3%
    • Edge Grain (1-ply): 0.4%
  • Hardness (Janka Ball Test)
    • Edge Grain (1-ply): 916 lbf (avg)
  • Screw Hold (face / back / edge)
    • Flat Grain (3-ply): 1,009 lbs. / 681 lbs. / 516 lbs. (avg)
    • Edge Grain (1-ply): 261 lbs. / 233 lbs. / 575 lbs. (avg)

ASTM D3043: Static Bending

  • Density:
    • Flat Grain (3-ply): 40 lbs/ft3
    • Edge Grain (1-ply): 36 lbs/ft3
  • MOE / MOR (parallel):
    • Flat Grain (3-ply): 148,000 psi / 9,110 psi
    • Edge Grain (1-ply): 179,000 psi / 11,370psi

ASTM D3500: Tensile Strength

  • Load (parallel / perpendicular):
    • Flat Grain (3-ply): 892 lbs. (avg) / 1,536 lbs. (avg)
    • Edge Grain (1-ply): 1,700 lbs. (avg) / 642 lbs. (avg)
  • Strength (parallel / perpendicular):
    • Flat Grain (3-ply): 3,497 psi (avg) / 1,024 psi (avg)
    • Edge Grain (1-ply): 7,535 psi (avg) / 428 psi (avg)

ASTM D4442: Moisture Content:

  • Flat Grain (3-ply): 4% - 7% (avg)
  • Edge Grain (1-ply): 4% - 7% (avg)

ASTM D5116-06: Organic Emissions
[CA Section 01350]

  • Flat and Edge Grain: Pass / Pass