Laminated steel plate is a building material with excellent fireproof performance, and its fireproof performance is mainly manifested in the following aspects:
1. Physical and chemical properties: The surface of the coated steel plate is covered with a layer of refractory material, which makes it have high temperature resistance. Commonly used refractory materials include non-combustible, difficult-to-combustible or low-combustible materials, such as glass fiber cloth, rock wool, magnesium phosphate, etc. The application of these refractory materials makes the coated steel plate difficult to burn when subjected to high temperature, reducing the risk of fire spreading.
2. Thermal conductivity: When the coated steel plate is heated, its covering layer can play a good role in heat insulation and slow down the speed of heat energy conduction. This can prolong the fire-resistant time of the steel plate and prevent the fire from expanding rapidly. In addition, the coated steel plate can also reduce the heat energy input of the fire source to its surface by reflecting and scattering heat radiation.
3. Bearing performance: The coated steel plate improves its bearing capacity by increasing the outer coating of the steel plate. This means that in the event of a fire, the coated steel plate can better maintain the stability of the structure, providing a longer evacuation time and escape route.
4. Fireproof isolation performance: As a building material, coated steel plate can be used to make structures such as firewalls and fire doors to isolate the spread of fire. In the event of a fire, the coated steel plate can block the spread of flames and smoke, and cut off the path of fire propagation.
In general, the coated steel plate has good fire performance, which can slow down the spread of fire to a certain extent, prolong the evacuation time, and improve the overall fire safety of the building. However, in actual use, it is still necessary to select the coated steel plate that meets the requirements according to the specific needs and specification requirements, and to design, install and maintain it reasonably.
