Technical Specification of Fiber Cement Board
Raw Materials: Paper Pulp, Portland Cement, Quartz Sand and Inanimate matter
Thickness: 6-20mm
Max. Width: 1, 220mm
Max. Length: 3,000mm
Standard Size: 1220x2440mm, 1200x2400mm
Density minimum 1.25-1.50 kg/m3
Fire Resistance: In accordance with BS476 Part20&22:1987; GB8624 Class A (CNS6532)
Thermal conductivity: <0.20w/mk
Coefficient of Thermal Expansion: <5x10-6m/m.k
Coefficient of Moisture Expansion: <0.20%
Coefficient of Dry Shrinkage: <6x10-2
Bending Stress: Transverse: ≧15.0N/mm2 Vertical: ≧13.0N/mm2
Impact Strength: >3.00KJ/m2
Screw Pullout Force: ≧80N/mm
Moisture Content: <10%
Water Absorption: <35%
Anti-freezing: No distortion after 25 repeated cycles of freezing and thawing
Radioactivity: conforming to GB6566-2001 Grade A Standard
Edges: Tapered/Beveled/Square
100% asbestos free
Color: Grey
