Asbestos is an abbreviation for asbestos fiber cement slabs. It is produced from asbestos, glass fiber, clay and other materials according to scientific formulas. It has strong resistance to tension, pressure, and can withstand about 1400 °C. Can be used for insulation, thermal insulation, boilers, steel plants, chemical plants, cast aluminum plants, and general electrical insulation. What is the construction process of asbestos slab ceiling ?
First, introduction of asbestos board
Asbestos is an abbreviation for asbestos fiber cement slabs. It is produced from asbestos, glass fiber, clay and other materials according to scientific formulas. It has strong resistance to strain, withstands pressure, and can withstand about 1400°C! It can be used for insulation, insulation, sound insulation, boilers, steel plants, chemical plants, cast aluminum plants, and general electrical insulation.
The difference between asbestos board and mineral wool board: Asbestos board is made of asbestos and adhesives and other materials. Suitable for insulation, thermal insulation, sound insulation and electrical insulation. The main raw material of mineral wool board is slag wool, and appropriate additives are added. , Forming, drying, cutting, mineral wool board surface finish and sprayed, non-asbestos, formaldehyde-free, insulation, sound insulation, moisture, heat insulation and good sound absorption. Both materials can be used for decoration decoration.
Second, the role of ceiling
1, improve the indoor environment to meet the use of functional requirements
The design of ceiling shall not only consider the requirements of indoor decoration effect and art style, but also consider the technical performance requirements of lighting, ventilation, insulation, heat insulation, sound absorption or reflection, acoustics, fire prevention, etc. of the building using the function of the house. Affect the indoor environment and use. For example, in the ceiling of a theater, many issues in optical and acoustic design should be considered.
2, decorative interior space
The ceiling is an important part of the interior decoration. Apart from the wall surface and the ground, it is another big face that encloses the interior space. From the aspects of space, light and shadow, material, etc., it has a rendering environment for the room, which plays an important role in the atmosphere.
Third, asbestos board ceiling construction process
1. Elastic lines : Eject the 50cm control line according to the elevation drawn from the elevation point in advance, and determine the standard line of the ceiling elevation for each room according to the popped control line. Assemble the asbestos plate on the wall and control the point, usually about 900-1200mm.
2. Install the hanging bar : According to the requirements of the large construction drawings, determine the position of the bar, install the anti-rust paint before installing the bar. The boom is made of steel with a diameter of Φ6 and is painted with antirust paint. The distance between the lifting points is 900-1200mm. The upper end is connected with the iron expansion bolt during installation, and the lower end is connected with the hanging piece after being threaded. The exposed length of the installed end of the boom is not less than 3mm.
3, the installation of keel : the use of UC50 or U38 keel, ceiling keel spacing is less than 1200MM. When installing the main keel, the main keel hanger should be connected to the main keel, tighten the screws, and lift the ceiling according to the design requirements. The height of the arching is about 1/20 of the short span, and the installed main keel length should be staggered. Add hanging points at the joints and check the keel's flatness at any time. When the ventilation duct is larger than the maximum spacing requirement of the keel, the keel skeleton must be made of 30*3 or more angle steel, and the skeleton and ventilation ducts and other equipment engineering cannot be contacted.
4, install asbestos board : According to the different installation methods and specifications of the panel, the second asbestos board is divided into T-shaped and C-shaped two, asbestos-board spacing is 600mm, the asbestos board hangs on the big keel through the pendant, in the main keel Install 600MM horizontal braces in a parallel direction with 600MM or 1200MM spacing. When the shelving method is adopted and the installation method is adopted, the sub keel is T-shaped, and the C-shape is used when the sticking method or other fixing method is adopted.
5. Installation of asbestos sheet membrane : The specification and thickness of asbestos sheet membrane shall be determined according to design requirements. Workers shall wear white gloves to prevent contamination when installing.
Xiao Bian concludes: On the asbestos board ceiling related knowledge Xiaobian introduced here, I hope to be helpful to everyone. For more relevant information, please continue to pay attention to the information platform of this website. Follow-up will present more exciting content for everyone.
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