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Foam-diatomite insulating brick |
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Present technical specifications (TS) apply to a foam-diatomite insulating brick (hereinafter — brick), designed for thermal insulation of the industrial equipment (electrolysis baths, smelting furnace, boilers, piping, etc.) at temperature of the insulating surface up to +900° C. The brick refers to a group of non-flammable materials and can be used for fire protection of steel, ferroconcrete and wooden constructions as well as in the house-building and civil engineering.
Here is a sample of designation of the brick in different documents and while ordering:
Brick FD 400 TS 5764-002-25310144-99, where
- FD — foam-diatomite;
- 400 — brick brand.
- The brick is to be produced according to the requirements of the present TS in accordance with the technical documentation, approved in established order.
- The brick is subdivided into two brands depending on its density: 400 and 500.
- The size of the brick is to meet the requirements mentioned in the table.
| Length, mm |
250±5 |
| Width, mm |
123±3 |
| Thickness, mm |
65±2 |
Requirements to the source material.
To produce the brick they apply the following materials:
- Diatomite according to the TS 5761-001-25310144-99
- Saw dust or lignine (up to 30 percent in mass)
- Piny colophony according to the State Standart 19113 (as a frother)
- Casein glue in powder according to the State Standart 3056 or technical lignosulfate according to the TS 130281036-05 with the construction lime according to the State Standart 9179 (as stabilizing additive)
It is possible to use another materials as a frother and stabilizing additive, which don't depress physical and mechanical indicators of production.
- According to physical-mechanical indicators the brick is to meet requirement in the table.
| Indicator name |
The norm for brands |
| 400 |
500 |
| Density, kg/m |
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Thermal conduction, watt (m,k) no more than, at temperature:
(25 ±3)° C
(300 ±5)° C |
0,100
0,145 |
0,105
0,160 |
| Ultimate strength of compression resistance, no less than |
0,8 |
1,0 |
| linear temperature shrinkage at 900° C, no more than |
2 |
2 |
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COMPANY
Foam-diatomite flamed crumb
