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Fire-resistant Plasterboard is a kind of fireproof, sound insulation and heat preservation building material, whose main components are gypsum and basalt and other high-temperature resistant materials, usually used for partition walls, ceiling and decoration inside buildings.
| Item | Standard Value | Test Value | ||||
| Density (kg/m²) | — | Thickness | Regular | Fire Resistant | Water Resistant | |
| ≯ 9.5kg/m² | 9.5mm | 7.5 | 7.5 | 7.5 | ||
| ≯ 12.0kg/m² | 12mm | 9.5 | 9.5 | 11.5 | ||
| Flexural Strength(N) | Parallel | ≮ 360 | 9.5mm | 560 | ||
| ≮ 500 | 12mm | 700 | ||||
| Cross | ≮ 140 | 9.5mm | 180 | |||
| ≮ 160 | 12mm | 240 | ||||
| Surface Paper Sticking theCore Material | Unexposed | Unexposed | ||||
| Stability with Fire (Min) | Fire Resistant | ≮ 20 | / | / | ＞20 | / |
| Water Absorption (%) | Water Resistant | ≮ 10 | 9.5mm | / | / | 6.8 |
| 12mm | / | / | 4.2 | |||
| Radioactivity | Internal | IRa≤1.0 | ＜1.0 | |||
| External | Ir≤1.3 | ＜1.0 | ||||
| Note | Executive Standard : GB/T 9775-2008 | |||||
Properties: Thermal Conductivity: 0.24 (w/mºK) Thermal resistance: 0.05 for 12mm thick board 0.06 For 15mm thick board.
Thickness: common thicknesses are 9mm, 12mm, 15mm, 18mm, 20mm, etc. Different thicknesses of refractory gypsum board are suitable for different occasions.
Density: The common density is 0.96g/cm³, 1.0g/cm³, 1.2g/cm³, etc. The higher the density, the better the fire resistance, but at the same time, it will increase the weight and difficulty.
Bending strength: common bending strength of ≥ 8MPa, ≥ 10MPa, ≥ 12MPa, etc., the higher the strength, the more durable.
Fire resistance grade: The common fire resistance grades are A, B and C. The A grade has the best fire resistance performance and can withstand high temperature and prevent the spread of fire.
Size: The size of fireproof gypsum board is generally 1200mm×2400mm, 1220mm×2440mm, etc. There are also some special specifications of fireproof gypsum board.
Fire-resistant gypsum board is a high-performance, multifunctional building material whose main use is as a decoration material for building walls, partition walls, ceilings, fireproof doors, fireproof partitions, suspended ceilings, etc., and for isolation and fireproofing in high-temperature, flammable and explosive places such as factories, laboratories and power equipment rooms.
The special structure and performance of fireproof gypsum board make it have excellent performance of fireproof, heat insulation, heat preservation, moistureproof, sound insulation and so on. Using fireproof gypsum board inside the building can greatly improve the fireproof level of the building, and at the same time, it can also effectively isolate the sound, heat insulation and thermal insulation.