cement board

Raw Materials: Paper Pulp, Portland Cement, Quartz Sand and Inanimate matter

Thickness range: 4.5-20mm
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: ≧13.0N/mm2 Vertical: ≧10.0N/mm2

Impact Strength: >3.50KJ/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