| Gypsum Board | |||
| Length(mm) | 1830; 2000→3000 | ||
| Width(mm) | 1200; 1220 | ||
| Thickness(mm) | 8→12. 5 | ||
|
ITEMS |
INDEX |
REMARKS |
|
(kg/m2)
Weight per sqm |
Thickness Common board Fire-proof board
9. 5 ≤8. 5 ≤8. 5
12 ≤10. 5 ≤10. 5 |
GB/T9775-19 |
|
Fiexure
Supporting span |
Thickness ⊥Fibre //Fibre
9. 5 --- --- |
GB/T9775-19 |
|
Breaking strength
(d-thickness of board) |
Thickness ⊥Fibre // Fibre
9. 5 ≥501 ≥193
12 ≥659 ≥261 |
GB/T9775-19 |
|
Fire-resistance limit |
CommonGypsum board 5-10 min
Fire-proof gypsum board ≥30min |
GB/T9775-19 |
|
Combustion property |
Non-combustive Material |
According to GB5464 |
|
Moisture content |
＜2% |
|
|
Thermal conductivity W/m. °C |
0. 167-0. 18 |
|
|
Sound insulation Property(db)
|
Thickness Sound insulation index
9. 5 26
12 28 |
|
|
Nailholding strength (kg/cm2)
|
Thickness Nailholding strength
9. 5 12
12 20 |
ANST/ASTM 79-78 |