Specification


Calcium Silicate Block


Clasification Temperature, Deg.C
Bulk Density, Kg/m
Compressive Strength


Reduction in thickness, not to exceed under a load of dry, 415 kN/m
Wet, after 18 Hrs, immersion in water, 171 kN/m

Flexural Strength, kN/m (Min.)
Cold Crushing Strength, kN/m (Min.)


Heat Resistance under heat soaking for 12 Hrs.
Liner Shrinkage (Length), Max,

Loss Max
Compressive Strength reduction in thickness and not to exceed under
load of 345 kN/m

Thermal Conductivity (W/mK), maximum

  • At Mean Temperature 300 C
  • 400 C
  • 500 C
  • 550 C

As dispatched, moisture content (%) max.
Alkalinity, Ph.


Dimensional Tolerance (mm)

  • Length / Width
  • Thickness




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