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Fire protection measures for precision steel pipe

First, outsourcing. It is to add outer cladding on the appearance of precision steel pipe, which can be cast in-situ or sprayed. Cast-in-place solid concrete cladding is usually reinforced with wire mesh or steel bars to limit shrinkage cracks and ensure the strength of the shell. The spraying method can apply a sand pump on the surface of the precision steel pipe at the construction site to form a protective layer. The sand pump can be lime cement or gypsum mortar, and can also be incorporated into perlite or asbestos. At the same time, the overclad layer can also be made of perlite, asbestos, gypsum or asbestos cement, and light concrete as prefabricated panels, which are fixed on precision steel tubes with adhesives, nails, and bolts.

Second, fill water. Hollow precision steel pipes are the most effective protective measures against fire. This method can keep the precision steel tubes at a lower temperature in the fire. The water circulates inside the precision steel tube and absorbs the heat that the material itself is exposed to. The heated water can be recycled after cooling, or cold water can be introduced into the pipe to replace the heated water.

Third, shielding. Precise steel pipes are placed in walls or ceilings made of refractory materials, or the components are concealed in the gaps between the two walls. The purpose of fire prevention can be achieved only by adding a little refractory material or not. This is the most economical method of fire protection.

Fourth, the expansion of materials. The use of precision fire-retardant steel pipe to protect components, this method has a good fire and heat insulation properties, construction is not limited by precision steel pipe geometry, etc., generally do not need to add auxiliary facilities, and the coating is light, there is a certain amount of beautiful decorative effect, It belongs to the modern advanced fire protection technology measures.

At present, high-level precision steel pipe construction is increasing day by day, especially in some high-rise buildings, and the use of precision steel pipe materials is more extensive. In the event of a fire accident in a high-rise building, the fire cannot be extinguished in a short time. This requires us to increase the fire protection of building materials in order to enhance the fire-resistance limit, and to formulate necessary emergency response within the building. Program to reduce casualties and property losses.

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