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Calcium Silicate Blocks
CALCIUM SILICATE THERMAL INSULATION
Slab, Lags, Bricks, Pipes & Powder up to 1000 0C
Insulation brick based on Calcium Silicate is reacted Calcium Silicate continuing reinforcing fibers (non-asbestos). It offers thermal efficiency of flexible insulation like mineral wool and strength of conventional Insulation Bricks.
Insulation piper are ideal replacement for fibrous insulation and are un-matched in places where insulation is exposed to water, floor traffic, impact loads etc.
Insulations based on Calcium Silicate meet specifications as under :-
IS 8154 & 8428
Relevant Naval Specifications
ASTM C 533-90
B.S.3958 part II.
Advantage
- Low Thermal Conductivity
- Rigid & Light Weight (Density 250 kg/M3)
- Good Mechanical Strength (Above 10kg/cm2)
- Fire resistant
- Low shrinkage
- Low specific Heat
- Non Combustible & Non Corrosive
- Low maintenance Cost
- Re-usable & Long life
- Easily Workable (cuts easily).
Application
| Cement |
Preheaters / Precalciners, Coolers, TAD etc. |
| Aluminium |
Reduction pots, Other Thermal Process Equipment |
| Glass |
Furnace, Recuperations, Annealing etc. |
| Steel |
Various types of furnaces as refractory back up. |
| Power Plants |
Boilers, Steam Lines, Recuperators etc. |
| Fertilizers |
Reformers, Steam Lines, Furnaces |
| Petrochemicals & refineries |
Incinerators, High Temp. Equipments, Hot Gas & Chemical Lines etc |
| Ceramic |
Tunnel Kilns. |
| Ship Building |
Boilers, Turbines, Steam Lines, Fuel Gas ducts etc. |
| Chemicals |
Boilers, High Temp. Reactors, Fuel Gas ducts, Steam / Thermic fluid lines, Dryers, Furnaces etc. |
| Others |
Significant fuel saving can be obtained in Sugar Mills, Foundries Rolling Mills and other industries, which use thermal equipments at High temperature |
| Properties |
S 9428
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ASTM
|
C533:90
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JR GRADE
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| Temperature © MAX. |
-
|
TYPE I
|
TYPE II
|
800
|
1000
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Bulk Density: (kg/m3)
TEST VALVES
Avg. value: |
950
|
649
|
871
|
800
|
1000
|
|
-
|
-
|
-
|
-
|
-
|
|
-
|
-
|
-
|
-
|
-
|
Compressive strength,
Reduction in thickness, max.
Dry, under a load of 415 KN/m2
Wet, under a load of 170 KN/m2
After 18 hrs. Of immersion in water.
Dry, under a load of 345 KN/m2
After 24 hrs heat soak: |
-
|
-
|
-
|
-
|
-
|
|
-
|
-
|
-
|
-
|
-
|
|
5%
|
5%
|
5%
|
3%
|
3%
|
|
5%
|
-
|
-
|
3.5%
|
3.5%
|
|
-
|
-
|
-
|
-
|
-
|
|
5%
|
-
|
-
|
3.5%
|
3.5%
|
|
-
|
-
|
-
|
-
|
-
|
| Flexural Strength (KN/m2) min. |
240
|
310
|
310
|
400
|
400
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Heat resistance after heat soak at max. Temp. For 24 hrs.
Linear shrinkage (length),
Max. :
Typical:
Loss in mass. Max: |
-
|
-
|
-
|
-
|
-
|
|
-
|
-
|
-
|
-
|
-
|
|
-
|
-
|
-
|
-
|
-
|
|
2%
|
2%
|
2.5%
|
2%
|
2%
|
|
-
|
-
|
-
|
1.6%
|
1.8%
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|
15%
|
-
|
-
|
15%
|
15%
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Thermal Conductivity (W/mk)
Max. At mean temp.
200 C
300 C
400 C
500 C |
-
|
-
|
-
|
-
|
-
|
|
-
|
-
|
-
|
-
|
-
|
|
0.080
|
0.079
|
0.095
|
0.070
|
0.080
|
|
0.097
|
0.095
|
0.110
|
0.080
|
0.090
|
|
0.121
|
-
|
0.136
|
-
|
0.105
|
|
0.147
|
-
|
-
|
-
|
0.120
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Cold crushing Strength (CCS)
(Kg/cm2), min
Light Grade (k/value0.12W/mk)
Medium Grade (0.15W/mk) |
-
|
-
|
-
|
-
|
-
|
|
-
|
-
|
-
|
-
|
-
|
|
-
|
-
|
-
|
10
|
25
|
|
-
|
-
|
-
|
-
|
-
|
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