Building materials for thermal insulation, insulation, and sound insulation
This entry is reviewed by the "Science Popularization China" Science Encyclopedia Entry Writing and Application Work Project.
Asbestos board is the abbreviation for asbestos fiber cement flat board, which is produced using materials such as asbestos, glass fiber, and clay according to scientific formulas. Has strong tensile resistance, can withstand pressure, and can withstand around 1400 ℃. It can be used for insulation, insulation and sound insulation, boilers, steel plants, chemical plants, aluminum casting factories, and general electrical insulation.
Chinese name Asbestos board, original name Asbestos fiber cement board, characteristics of tensile resistance, pressure resistance, and resistance to 1400 ℃, used for thermal insulation, insulation and sound insulation, steel plants, chemical plants
catalogue
1. Related Introduction
2 Basic classification
Related Introduction
Asbestos board is the abbreviation for asbestos fiber cement flat board, which is produced using materials such as asbestos, glass fiber, clay, etc. according to scientific formulas. Has strong tensile resistance and can withstand pressure. Can withstand around 1400 ℃! It can be used for insulation, insulation and sound insulation, as well as general electrical insulation in boilers, steel plants, chemical plants, aluminum casting factories, etc. The difference between asbestos board and mineral wool board:
Asbestos board is made of materials such as asbestos and adhesives. It is suitable for insulation, insulation, sound insulation, and electrical insulation. Mineral wool board is mainly made of slag cotton as the main raw material, with an appropriate amount of additives added. After batching, forming, drying, cutting, surface finishing and spraying of mineral wool board, it is free of asbestos and formaldehyde, and has good sound insulation, moisture-proof, heat insulation and sound absorption functions. Both of these materials can be used for decoration.
Basic classification
Asbestos board is divided into asbestos insulation board, asbestos rubber board, and asbestos cement board.
Asbestos insulation board, also known as asbestos white board, is a board like material made mainly of asbestos and mixed with a certain amount of adhesive filling material. It is suitable for insulation, insulation, sound insulation, and general electrical insulation.
2. Technical indicators of asbestos insulation board:
(1) The loss on ignition shall not exceed 18%; The moisture content shall not exceed 5%.
(2) The weight of 1 square meter of 1mm thick asbestos board should not exceed 1.3Kg.
(3) Asbestos board with a tensile strength of not less than 1.4kg/c ㎡, with a thickness of less than 6mm.
(4) When the operating temperature is not greater than 1000 ℃, the thermal conductivity is 0.13-0.15 kcal/meter/hour/degree.
(5) The allowable tolerance for length and width is ± 1mm, and the allowable thickness is 12%.
3. Packaging and storage requirements for asbestos insulation board:
Asbestos insulation board shall be packed in wooden crates and wrapped with plastic cloth. The net weight of each box is 100kg. It shall not be thrown during loading and unloading. It shall be kept in a flat, clean and dry room. It is strictly prohibited to get wet in the rain.
4. Application of asbestos insulation board products:
Asbestos insulation board is mainly used in steel and aluminum factories for insulation layer, boiler insulation layer, and thermal insulation.
5. Product Structure and Usage
(1) Asbestos board is made of materials such as asbestos and bonding. Suitable for insulation, insulation, sound insulation, and electrical insulation.
(2) Product execution standard 11-59
(3) The technical and physical properties of the product.
