*Compressive Strength, reduction in thickness(%) not to exceed :
I) dry under a load of 415 kN/m²
5.0
1.7
IS : 5688
II) wet (after 18 hrs immersion in water ) under a load of 170 kN/m²
5.0
1.9
IS : 5688
As shipped Moisture Content, by weight %, (max)
7.5
5.0
IS : 9428
Alkalinity
pH
8 – 11
9.5
IS : 9428
THERMAL PROPERTIES
UNIT
SPECIFICATION
TYPICAL VALUE
TEST PROCEDURE
Heat Resistance
I) Linear Shrinkage(length) at 950°C/12 Hrs., % (max)
2.0
1.8
IS : 5724
II) Loss In Mass,% (max)
12.0
10.0
IS : 5724
*III) Compressive Strength, reduction in thickness(%) not to exceed under a load of 345 kN/m²
5.0
1.8
IS : 5688
Thermal Conductivity at mean temperature, W/mK (max)
IS : 9490
300 °C
0.078
0.074
400 °C
0.097
0.094
500 °C
0.118
0.114
* Testing shall be carried out on Flat Blocks in case of Pipe Sections. Packaging : Polythene Shrink wrap Packing / Cardboard Box Packing / Pallet Packing Dimensional Tolerance : As per IS 9428