Product Data Technical Data Major Application
 

Technical Data

Limiting Temperature:

Grade  Temp
CALCIUM BLOCkS-1000  980C
CALCIUM BLOCkS-800  800C

Density:
250 kg/m (Nominal)

Linear Shrinkage:
After heating for 24 Hrs. at limiting temperature.
Shrinkage: Less than 2%

Temp  Typical Values
980C  1.7%
800C  1.2%

Compressive Strength:
Compressive strength 700 kN/m minimum. Reduction in thickness - less than 5% when subjected to compressive loads of :
415 kN/m - Unheated
345 kN/m - After 24 hrs. Heating at limiting temperature.
170 kN/m - After 18 hrs. Immersion in water.

Flexural Strength:
250 kN/m minimum
Tested as per IS-5688

Fire Safety:
HYSIL is non-combustible when tested in accordance with BS: 476 Part 4. Also surface spread of flame test. (Large scale) as per BS-476 Part 7 Classified as Class-1.

Thermal Conductivity:

Mean
TempC
200
300
400
500
W/m.K
0.067
0.078
0.092
0.112
kcal/m.h.C
0.057
0.067
0.079
0.096

Tested in accordance with BS 874 Cold face 40C. Also as per I.S. 9490 and I.S. 3346

CALCIUM BLOCUS Grades 1000/800 exceed the requirements of I.S. 9428, IS 8154 as well as BS 3958 Part 2 & ASTM C-533.

The values quoted are from laboratory tests on typical samples and represent averages. They should not be used as maxima or minima in specifications.

 

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