--Comparison between bamboo and wood floor and its parameter
The chromatism comparison between bamboo flooring and wood flooring Because the diameter of timber trunk is bigger than that of bamboo, which leads to that the influence on the
bamboo by sunlight is much larger than that on the trees and the chromatism difference between the
positive surface and negative surface is a bit larger, even if the quality and hierarchicy of the material is the
same, its color is uneasy to conform, however, bamboo floor boards are the other way round.
Physical property comparison between bamboo and wood
Compared with wood, bamboo has many virtues: high strength, large tenacity, strong rigidity, tractability and so on, and has better physical mechanics performances .Its static bending strength, rigidity ,and strength of extension are more than twice that of wood . Folding strength and surface degree of bamboo flooring made of bamboo are larger than that of wood flooring.
Water percentage 8-14%
Hardness>55mpa.
Warp flush >=98mpa
Dilatability:
Transverse: direction 0
Wide direction: 0.01%
Thick direction: 0.07%
Permit deviation:
Transverse: direction :Lave<=0.5mm
Wide direction : Wave<=0.15mm
Thick direction : Tave<=0.5mm
Density 0.73g/cm3
Gluestick ductility>2.5mpa
Formaldehyde<9mg/100g(with European E1 standard If use DYNO glue)<0.12mg/100g
(Normal glue with china national standard).
Impact ductility:>155kg/m2
Abrasive resistance of surface <=0.08g/100r
Elastic modulus>11.5*103mpa
--Test results
CONSTRUCTION: Three layer, all bamboo,tongue and groove plank 960MM and 1840MM long by 96MM wide by 15MM thick, factory pre-finished with 3 coats of 100% solids UV cured Acrylic urethane.
FLAMMABILITY: when tested according to ASTM E648 critical Radiant panel Test. Passes with a CLASS I rating per NFPA: life safety code.(cam be used in all classes of buildings.)
SMOKE DENSITY: when tested according to ASTM E622 pass = 450 or less, passes with 269 flaming mode 329 non-flaming mode.
ABRASION RESISTANCE: when tested according to ASTM C501(H-22 calibrated wheels loaded with 1000 gram weight at 70 RPM for 1000 cycles) weight loss =349 grams =.012ounces.
CHEMICAL AND STAIN RESISTANCE: when tested with the following chemical reagents finish was unaffected: Acetic Acid(5%) Acetone Ammonium Hydroxide(10%) Toluene
Detergent solution Ethyl Alcohol(50%) Hydrochloric Acid(10%) Turpentine heavy Duty(.025%) Hydrogen peroxide(3%) Soap Solution(1%) sodium Hydroxide(1%)
INDENTATION RESISTANCE: when tested according to ASTM 1037(janka Ball Har dness) showed an average hardness of 1320. (harder than Northern Red oak)
DIMENSTONAL STABILITY: when tested according to standard me thod for wood flooring showed a dimensional change coefficient of .00144.
SLIP RESISTANCE: when tested according to ASTM D2047=results 0.71 coefficient of Friction.
COMPRESSIVE STRENGTH: when tested according to ASTM D3501-86 A=results
A) parallel to Grain =7,549 PSI
B) perpendicular to Grain =2,566 PSI
C) Flatwise =16,925 PSI at 50% strain. (load to compress to 1/2 ckness)
BENDING STRENGTH: when tested according to ASTM D3043-87 result =13,608 PSI
BENDING ELASTICITY MODULUS: =943,443 PSI SHEAR
STRENGTH: when tested according to BRITISH STANDARD # 373 resrlt =parallel to Grain 1365 PSI
TENSILE STRENGTH: when tested according to ASTM D3500-90 A result = parallel to crain 15, 290 PSI