PROPERTIES |
UNITS |
THICKNESS |
REMARKS |
50mm |
75mm |
|
Weight (nom) per sq. m. |
Kgs |
43 |
60 |
|
| Axial
load / metre width (Sample size - 1500 x 300 mm) |
KN/m |
53 |
83 |
Factor of safety - 2.5 |
| |
| Bending
Test (4 point UDL) Uniformly distributed load |
Kg/m² |
|
|
| 2.9
M span |
73 |
100 |
Factor of safety - 2.5 |
| 1.5
M span |
198 |
265 |
| |
| Flexural
Strength/ Modulus of Rupture |
Kg/cm² |
67 |
58 |
Typical Test results |
| |
| Comprehensive
Strength |
Kg/cm² |
30 |
40 |
Typical Test results |
| |
| Thermal
Conductivity |
W/mºK |
0.22 |
0.21 |
BS 4370 - Part 2 |
| |
|
Sound transmission class (Typical Test result of Prasar
Bharati and National Physical Laboratories) |
db |
33 |
36 |
IS :9901 (Part111) -1981
IS :11050 (Part 1) -1981 |
| |
| Fire
rating* |
minutes |
60 |
120 |
BS
476 Part 20 - 22 |
Surface spread of flame*
Fire Propagation Index (I)*
Ignitability* |
Class 1
3.7
Class 'P'
(not easily ignitable) |
BS
476 Part 7 - 1971
BS 476 Part 6 - 1981
BS 476 Part 5 - 1968 |
